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CERTFR-2026-AVI-1111
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans les produits F5. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| F5 | BIG-IP | BIG-IP versions 21.1.x antérieures à 21.1.0.1 | ||
| F5 | BIG-IP | BIG-IP APM versions 17.1.x antérieures à 17.1.3.1 | ||
| F5 | NGINX | NGINX Gateway Fabric versions 2.x antérieures à 2.6.8 | ||
| F5 | BIG-IP | BIG-IQ versions 8.4.x antérieures à 8.4.2.1 | ||
| F5 | BIG-IP | BIG-IP versions 17.1.x antérieures à 17.1.3.4 | ||
| F5 | NGINX Ingress Controller | NGINX Ingress Controller versions 5.x antérieures à 5.6.0 | ||
| F5 | BIG-IP | BIG-IP APM versions 17.5.x antérieures à 17.5.1.4 | ||
| F5 | BIG-IP | BIG-IP versions 17.5.x antérieures à 17.5.1.8 | ||
| F5 | NGINX Ingress Controller | NGINX Ingress Controller versions 2026-lts-rx antérieures à 2026-lts-r5 | ||
| F5 | BIG-IP | APM Clients versions 7.2.x antérieures à 7.2.6 | ||
| F5 | BIG-IP | BIG-IP versions 21.0.x antérieures à 21.0.0.3 | ||
| F5 | NGINX | NGINX JavaScript versions antérieures à 1.0.1 |
References
| Title | Publication Time | Tags | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "BIG-IP versions 21.1.x ant\u00e9rieures \u00e0 21.1.0.1",
"product": {
"name": "BIG-IP",
"vendor": {
"name": "F5",
"scada": false
}
}
},
{
"description": "BIG-IP APM versions 17.1.x ant\u00e9rieures \u00e0 17.1.3.1",
"product": {
"name": "BIG-IP",
"vendor": {
"name": "F5",
"scada": false
}
}
},
{
"description": "NGINX Gateway Fabric versions 2.x ant\u00e9rieures \u00e0 2.6.8",
"product": {
"name": "NGINX",
"vendor": {
"name": "F5",
"scada": false
}
}
},
{
"description": "BIG-IQ versions 8.4.x ant\u00e9rieures \u00e0 8.4.2.1",
"product": {
"name": "BIG-IP",
"vendor": {
"name": "F5",
"scada": false
}
}
},
{
"description": "BIG-IP versions 17.1.x ant\u00e9rieures \u00e0 17.1.3.4",
"product": {
"name": "BIG-IP",
"vendor": {
"name": "F5",
"scada": false
}
}
},
{
"description": "NGINX Ingress Controller versions 5.x ant\u00e9rieures \u00e0 5.6.0",
"product": {
"name": "NGINX Ingress Controller",
"vendor": {
"name": "F5",
"scada": false
}
}
},
{
"description": "BIG-IP APM versions 17.5.x ant\u00e9rieures \u00e0 17.5.1.4",
"product": {
"name": "BIG-IP",
"vendor": {
"name": "F5",
"scada": false
}
}
},
{
"description": "BIG-IP versions 17.5.x ant\u00e9rieures \u00e0 17.5.1.8",
"product": {
"name": "BIG-IP",
"vendor": {
"name": "F5",
"scada": false
}
}
},
{
"description": "NGINX Ingress Controller versions 2026-lts-rx ant\u00e9rieures \u00e0 2026-lts-r5",
"product": {
"name": "NGINX Ingress Controller",
"vendor": {
"name": "F5",
"scada": false
}
}
},
{
"description": "APM Clients versions 7.2.x ant\u00e9rieures \u00e0 7.2.6",
"product": {
"name": "BIG-IP",
"vendor": {
"name": "F5",
"scada": false
}
}
},
{
"description": "BIG-IP versions 21.0.x ant\u00e9rieures \u00e0 21.0.0.3",
"product": {
"name": "BIG-IP",
"vendor": {
"name": "F5",
"scada": false
}
}
},
{
"description": "NGINX JavaScript versions ant\u00e9rieures \u00e0 1.0.1",
"product": {
"name": "NGINX",
"vendor": {
"name": "F5",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-18329",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-18329"
},
{
"name": "CVE-2026-66842",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-66842"
},
{
"name": "CVE-2026-42959",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-42959"
},
{
"name": "CVE-2026-77180",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-77180"
},
{
"name": "CVE-2026-78689",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-78689"
},
{
"name": "CVE-2026-78222",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-78222"
},
{
"name": "CVE-2026-33278",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-33278"
},
{
"name": "CVE-2026-63020",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-63020"
},
{
"name": "CVE-2026-66362",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-66362"
}
],
"initial_release_date": "2026-09-03T00:00:00",
"last_revision_date": "2026-09-03T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1111",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-09-03T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Falsification de requ\u00eates c\u00f4t\u00e9 serveur (SSRF)"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits F5. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, une \u00e9l\u00e9vation de privil\u00e8ges et un d\u00e9ni de service \u00e0 distance.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits F5",
"vendor_advisories": [
{
"published_at": "2026-09-03",
"title": "Bulletin de s\u00e9curit\u00e9 F5 K000162601",
"url": "https://my.f5.com/manage/s/article/K000162601"
},
{
"published_at": "2026-09-03",
"title": "Bulletin de s\u00e9curit\u00e9 F5 K000162417",
"url": "https://my.f5.com/manage/s/article/K000162417"
},
{
"published_at": "2026-09-02",
"title": "Bulletin de s\u00e9curit\u00e9 F5 K000162872",
"url": "https://my.f5.com/manage/s/article/K000162872"
},
{
"published_at": "2026-09-03",
"title": "Bulletin de s\u00e9curit\u00e9 F5 K000162521",
"url": "https://my.f5.com/manage/s/article/K000162521"
},
{
"published_at": "2026-09-03",
"title": "Bulletin de s\u00e9curit\u00e9 F5 K000162602",
"url": "https://my.f5.com/manage/s/article/K000162602"
},
{
"published_at": "2026-09-03",
"title": "Bulletin de s\u00e9curit\u00e9 F5 K000162599",
"url": "https://my.f5.com/manage/s/article/K000162599"
},
{
"published_at": "2026-09-03",
"title": "Bulletin de s\u00e9curit\u00e9 F5 K000161728",
"url": "https://my.f5.com/manage/s/article/K000161728"
},
{
"published_at": "2026-09-03",
"title": "Bulletin de s\u00e9curit\u00e9 F5 K000162600",
"url": "https://my.f5.com/manage/s/article/K000162600"
},
{
"published_at": "2026-09-03",
"title": "Bulletin de s\u00e9curit\u00e9 F5 K000162603",
"url": "https://my.f5.com/manage/s/article/K000162603"
}
]
}
CVE-2026-78689 (GCVE-0-2026-78689)
Vulnerability from cvelistv5
Published
2026-09-02 15:40
Modified
2026-09-03 03:56
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2 (Critical) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.2 (Critical) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
VLAI Severity ?
EPSS score ?
CWE
Summary
Description
NGINX JavaScript (njs) has a vulnerability in the XML module's namespace prefix list parser, reachable through the xml.exclusiveC14n() method. An unauthenticated remote attacker can trigger it when an affected NGINX configuration passes an externally controlled XML namespace prefix list to that method. Both the njs and the QuickJS (qjs) engines are affected. A crafted prefix list causes an out-of-bounds write past the end of a heap allocation. With the njs engine, which is the engine used when the js_engine directive is absent, this corrupts adjacent objects and crashes the NGINX worker. With the QuickJS engine, the same call additionally leaks the prefix list on every invocation, causing worker memory to grow across requests. The official nginxinc/nginx-saml reference implementation is affected during SAML signature verification. It reads InclusiveNamespaces/@PrefixList from an untrusted SAML message and passes it to xml.exclusiveC14n() before the signature has been verified, so a valid SAML signature is not required. A crafted SAML Response, Assertion, LogoutRequest, or LogoutResponse is sufficient. Code execution has not been demonstrated and cannot be ruled out for all platforms, as the effect of the out-of-bounds write depends on conditions beyond the attacker's control.
Impact
This vulnerability allows remote attackers to cause a denial of service on the NGINX system, either through repeatable worker restarts or through worker memory growth or possibly trigger code execution. There is no control plane exposure; this is a data plane issue only.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| F5 | NGINX JavaScript |
Version: 0.7.10 < 1.0.1 |
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CVE-2026-33278 (GCVE-0-2026-33278)
Vulnerability from cvelistv5
Published
2026-05-20 09:18
Modified
2026-09-01 12:04
Severity ?
VLAI Severity ?
EPSS score ?
Summary
NLnet Labs Unbound 1.19.1 up to and including version 1.25.0 has a vulnerability in the DNSSEC validator that enables denial of service and possible remote code execution as a result of deep copying a data structure and erroneously overwriting a destination pointer. An adversary can exploit the vulnerability by controlling a malicious signed zone and querying a vulnerable Unbound. When DS sub-queries need to suspend validation due to NSEC3 computational budget exhaustion (introduced in Unbound 1.19.1), Unbound deep-copies response messages to preserve them across memory region teardown. A struct-assignment bug overwrites the destination's pointer with the source's pointer. After the sub-query region is freed, the resumed validator dereferences this dangling pointer, triggering a crash or potentially enabling arbitrary code execution. Unbound 1.25.1 contains a patch with a fix to preserve the correct pointer when deep copying the data structure.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| NLnet Labs | Unbound |
Version: 1.19.1 ≤ |
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CVE-2026-66842 (GCVE-0-2026-66842)
Vulnerability from cvelistv5
Published
2026-09-02 15:40
Modified
2026-09-03 03:56
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Summary
BIG-IP has a vulnerability where an authenticated user of any role may be able to create administrative user accounts through an undisclosed request to Traffic Management User Interface (TMUI).
Impact:
This vulnerability may allow an authenticated attacker with network access to the BIG-IP management interface to escalate privileges by creating administrative accounts on the BIG-IP system. There is no data plane exposure; this is a control plane issue only.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2026-66362 (GCVE-0-2026-66362)
Vulnerability from cvelistv5
Published
2026-09-02 15:40
Modified
2026-09-03 03:56
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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8.6 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
VLAI Severity ?
EPSS score ?
CWE
Summary
Description:
When NGINX Plus is configured as the data plane for NGINX Gateway Fabric, an injection vulnerability exists in the NGINX configuration generator component of NGINX Gateway Fabric. User-supplied string values from the Authentication Filter Custom Resource Definition clientID or cookieName fields, or in the clientSecret field of a Secret referenced by an Authentication Filter, are rendered directly into NGINX configuration templates without sanitization or escaping.
Impact:
An authenticated attacker with permission to create or modify these resources may craft values that inject arbitrary NGINX configuration directives. This is a control plane issue; there is no data plane exposure.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| F5 | NGINX Gateway Fabric |
Version: 2.5.0 < 2.6.8 |
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CVE-2026-18329 (GCVE-0-2026-18329)
Vulnerability from cvelistv5
Published
2026-09-02 15:40
Modified
2026-09-02 17:56
Severity ?
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
8.8 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
8.8 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
VLAI Severity ?
EPSS score ?
CWE
Summary
Description
NGINX JavaScript (njs) and QuickJS (qjs) engines have a vulnerability when a js_access handler performs asynchronous request body processing and an exception is thrown during asynchronous access-control evaluation before an explicit access denial is returned. An unauthenticated attacker can exploit this vulnerability by sending a crafted HTTP request that triggers an error condition in the access validation logic. This may cause the js_access phase to fail open, allowing the request to proceed instead of being denied, resulting in an authentication or authorization bypass and unauthorized access to protected resources.
Impact
This vulnerability may allow remote attackers to bypass js_access controls. There is no control plane exposure; this is a data plane issue only.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| F5 | NGINX JavaScript |
Version: 1.0.0 < 1.0.1 Version: 0.9.9 < * |
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CVE-2026-78222 (GCVE-0-2026-78222)
Vulnerability from cvelistv5
Published
2026-09-02 15:40
Modified
2026-09-02 17:59
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
A vulnerability exists in NGINX JavaScript where a malformed HTTP response received by ngx.fetch() can crash an NGINX worker when trusted JavaScript reads Response.statusText. Exploitation requires control or influence over the fetched HTTP response.
Impact:
This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system. There is no control plane exposure; this is a data plane issue only.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
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| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| F5 | NGINX JavaScript |
Version: 0.5.1 < 1.0.1 |
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CVE-2026-42959 (GCVE-0-2026-42959)
Vulnerability from cvelistv5
Published
2026-05-20 09:20
Modified
2026-09-01 12:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-824 - Access of Uninitialized Pointer
Summary
NLnet Labs Unbound up to and including version 1.25.0 has a denial of service vulnerability in the DNSSEC validator that can lead to a crash given malicious upstream replies. When Unbound constructs chase-reply messages for validation, the code uses the wrong counter to calculate write offsets for ADDITIONAL section rrsets. DNAME duplication could increase the ANSWER section count and authority filtering could decrease the AUTHORITY section count and create an uninitialized array slot. Combining these two, the validator later dereferences this uninitialized pointer, causing an immediate process crash. An adversary controlling a DNSSEC-signed domain can trigger this bug with a single query by configuring a DNAME chain with unsigned CNAMEs and a response containing unsigned AUTHORITY records alongside signed ADDITIONAL glue records. Unbound 1.25.1 contains a patch with a fix to use the proper counters to calculate the write offsets.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| NLnet Labs | Unbound |
Version: 0 ≤ |
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CVE-2026-77180 (GCVE-0-2026-77180)
Vulnerability from cvelistv5
Published
2026-09-02 15:40
Modified
2026-09-03 03:56
Severity ?
8.3 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-76 - Improper Neutralization of Equivalent Special Elements
Summary
When NGINX Ingress Controller is configured with Ingress annotations, an injection vulnerability exists in the configuration generator of NGINX Ingress Controller. Multiple user-controllable fields are written into the generated NGINX configuration without sanitization. An authenticated attacker with permission to create or modify these annotations may craft values that inject arbitrary NGINX configuration directives.
Impact:
An authenticated attacker granted write access to NGINX Ingress Controller Ingress annotations through the Kubernetes API may be able to inject arbitrary NGINX configuration directives, create or delete files, or disable services. There is no data plane exposure; this is a control plane issue only.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| F5 | NGINX Ingress Controller |
Version: 5.0.0 < 5.6.0 Version: 2026-lts-r1 < 2026-lts-r5 |
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CVE-2026-63020 (GCVE-0-2026-63020)
Vulnerability from cvelistv5
Published
2026-09-02 15:40
Modified
2026-09-02 17:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-451 - User Interface (UI) Misrepresentation of Critical Information
Summary
A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages
Impact:
An attacker may trick authenticated BIG-IP users
into accessing malicious links and reflect a spoofed error message in
the victim's BIG-IP Configuration utility web browser session. This is a
control plane issue; there is no data plane exposure.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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"type": "finder",
"value": "F5 acknowledges Micha\u0142 Majchrowicz, Marcin Wyczechowski and Piotr Zdunek (members of the AFINE Team) for bringing this issue to our attention and following the highest standards of coordinated disclosure."
}
],
"datePublic": "2026-08-19T04:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cdiv\u003eA vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages\u0026nbsp;\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\n\u003cp\u003eImpact:\u003c/p\u003e\n\u003cp\u003eAn attacker may trick authenticated BIG-IP users \ninto accessing malicious links and reflect a spoofed error message in \nthe victim\u0027s BIG-IP Configuration utility web browser session. This is a\n control plane issue; there is no data plane exposure.\u003c/p\u003e\n\n\u003c/div\u003e\u003cdiv\u003eNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.\u003c/div\u003e"
}
],
"value": "A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages\u00a0\n\n\n\n\n\nImpact:\n\n\nAn attacker may trick authenticated BIG-IP users \ninto accessing malicious links and reflect a spoofed error message in \nthe victim\u0027s BIG-IP Configuration utility web browser session. This is a\n control plane issue; there is no data plane exposure.\n\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.1,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
"version": "3.1"
},
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"scenarios": [
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"value": "GENERAL"
}
]
},
{
"cvssV4_0": {
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 2.3,
"baseSeverity": "LOW",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
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"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-451",
"description": "CWE-451: User Interface (UI) Misrepresentation of Critical Information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-02T15:40:53.437Z",
"orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
"shortName": "f5"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://my.f5.com/manage/s/article/K000161728"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "BIG-IP Configuration utility vulnerability",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eTo mitigate this vulnerability, you may take the following actions:\u003c/p\u003e\n\u003cp\u003eWhen you have finished using the BIG-IP \nConfiguration utility, you should log off and close all instances of \nyour web browser. Do not use the same web browser that you use to manage\n the BIG-IP Configuration utility for any other purposes, such as \nbrowsing the internet. If you must perform both actions on the same \nclient machine, F5 recommends that you do so in separate browsers\u003c/p\u003e"
}
],
"value": "To mitigate this vulnerability, you may take the following actions:\n\n\nWhen you have finished using the BIG-IP \nConfiguration utility, you should log off and close all instances of \nyour web browser. Do not use the same web browser that you use to manage\n the BIG-IP Configuration utility for any other purposes, such as \nbrowsing the internet. If you must perform both actions on the same \nclient machine, F5 recommends that you do so in separate browsers"
}
],
"x_generator": {
"engine": "F5 SIRTBot v1.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
"assignerShortName": "f5",
"cveId": "CVE-2026-63020",
"datePublished": "2026-09-02T15:40:53.437Z",
"dateReserved": "2026-07-24T22:40:21.245Z",
"dateUpdated": "2026-09-02T17:55:45.119Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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