CVE-2026-16687 (GCVE-0-2026-16687)
Vulnerability from cvelistv5 – Published: 2026-08-19 18:56 – Updated: 2026-08-22 03:56
VLAI
EPSS
VEX
Title
Power System Buffer Overflow
Summary
IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the ASMI web interface. An unauthenticated attacker with network access can send the FSP a malformed request, allowing arbitrary code execution, giving the attacker full control over the managed system, resulting in a confidentiality, integrity, and availability impact.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 00:00 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
ibm
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7283893 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Power Systems Firmware |
Affected:
FW1120.00
Affected: FW1110.00 , ≤ FW1110.30 (semver) Affected: FW1060.00 , ≤ FW1060.80 (semver) Affected: FW950.00 , ≤ FW950.H2 (semver) cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw950.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-16687",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-21T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-22T03:56:02.086Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw950.00:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:*:*:*:*:*:*:*"
],
"product": "Power Systems Firmware",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "FW1120.00"
},
{
"lessThanOrEqual": "FW1110.30",
"status": "affected",
"version": "FW1110.00",
"versionType": "semver"
},
{
"lessThanOrEqual": "FW1060.80",
"status": "affected",
"version": "FW1060.00",
"versionType": "semver"
},
{
"lessThanOrEqual": "FW950.H2",
"status": "affected",
"version": "FW950.00",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the ASMI web interface. An unauthenticated attacker with network access can send the FSP a malformed request, allowing arbitrary code execution, giving the attacker full control over the managed system, resulting in a confidentiality, integrity, and availability impact.\u003c/p\u003e"
}
],
"value": "IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the ASMI web interface. An unauthenticated attacker with network access can send the FSP a malformed request, allowing arbitrary code execution, giving the attacker full control over the managed system, resulting in a confidentiality, integrity, and availability impact."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.6,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121 Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T18:56:55.611Z",
"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"shortName": "ibm"
},
"references": [
{
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://www.ibm.com/support/pages/node/7283893"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM strongly recommends customers with the products below install FW1120.01(1120_167), FW1110.31(1110_134) or newer to remediate this vulnerability as soon as possible.\u003c/p\u003e\u003cp\u003ePower 11\u003cbr/\u003e1) IBM Power System E1180 (9080-HEU)\u003c/p\u003e\u003cp\u003eIBM strongly recommends customers with the products below install FW1060.81(1060_184) or newer to remediate this vulnerability as soon as possible.\u003c/p\u003e\u003cp\u003ePower 10\u003cbr/\u003e1) IBM Power System E1080 (9080-HEX)\u003c/p\u003e\u003cp\u003eIBM strongly recommends customers with the products below install FW950.H3(950_230) or newer to remediate this vulnerability as soon as possible.\u003c/p\u003e\u003cp\u003ePower 9\u003cbr/\u003e1) IBM Power System S922 (9009-22G)\u003cbr/\u003e2) IBM Power System H922 (9223-22S)\u003cbr/\u003e3) IBM Power System S914 (9009-41G)\u003cbr/\u003e4) IBM Power System S924 (9009-42G)\u003cbr/\u003e5) IBM Power System H924 (9223-42S)\u003cbr/\u003e6) IBM Power System E950 (9040-MR9)\u003cbr/\u003e7) IBM Power System E980 (9080-M9S)\u003c/p\u003e\u003cp\u003eThe images mentioned above can be located at IBM Fix Central : \u003ca href=\"https://www.ibm.com/support/fixcentral/\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/support/fixcentral/\u003c/a\u003e\u003c/p\u003e"
}
],
"value": "IBM strongly recommends customers with the products below install FW1120.01(1120_167), FW1110.31(1110_134) or newer to remediate this vulnerability as soon as possible.\nPower 11\n1) IBM Power System E1180 (9080-HEU)\nIBM strongly recommends customers with the products below install FW1060.81(1060_184) or newer to remediate this vulnerability as soon as possible.\nPower 10\n1) IBM Power System E1080 (9080-HEX)\nIBM strongly recommends customers with the products below install FW950.H3(950_230) or newer to remediate this vulnerability as soon as possible.\nPower 9\n1) IBM Power System S922 (9009-22G)\n2) IBM Power System H922 (9223-22S)\n3) IBM Power System S914 (9009-41G)\n4) IBM Power System S924 (9009-42G)\n5) IBM Power System H924 (9223-42S)\n6) IBM Power System E950 (9040-MR9)\n7) IBM Power System E980 (9080-M9S)\nThe images mentioned above can be located at IBM Fix Central : https://www.ibm.com/support/fixcentral/"
}
],
"title": "Power System Buffer Overflow",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eProtect access to the FSP\u0027s network interface.\u003c/p\u003e"
}
],
"value": "Protect access to the FSP\u0027s network interface."
}
]
}
},
"cveMetadata": {
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"assignerShortName": "ibm",
"cveId": "CVE-2026-16687",
"datePublished": "2026-08-19T18:56:41.912Z",
"dateReserved": "2026-07-23T00:09:08.103Z",
"dateUpdated": "2026-08-22T03:56:02.086Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-16687",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-20T15:18:32.599208Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T15:25:55.328Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw950.00:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:*:*:*:*:*:*:*"
],
"product": "Power Systems Firmware",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "FW1120.00"
},
{
"lessThanOrEqual": "FW1110.30",
"status": "affected",
"version": "FW1110.00",
"versionType": "semver"
},
{
"lessThanOrEqual": "FW1060.80",
"status": "affected",
"version": "FW1060.00",
"versionType": "semver"
},
{
"lessThanOrEqual": "FW950.H2",
"status": "affected",
"version": "FW950.00",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the ASMI web interface. An unauthenticated attacker with network access can send the FSP a malformed request, allowing arbitrary code execution, giving the attacker full control over the managed system, resulting in a confidentiality, integrity, and availability impact.\u003c/p\u003e"
}
],
"value": "IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the ASMI web interface. An unauthenticated attacker with network access can send the FSP a malformed request, allowing arbitrary code execution, giving the attacker full control over the managed system, resulting in a confidentiality, integrity, and availability impact."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.6,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "CWE-121 Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T18:56:55.611Z",
"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"shortName": "ibm"
},
"references": [
{
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://www.ibm.com/support/pages/node/7283893"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM strongly recommends customers with the products below install FW1120.01(1120_167), FW1110.31(1110_134) or newer to remediate this vulnerability as soon as possible.\u003c/p\u003e\u003cp\u003ePower 11\u003cbr/\u003e1) IBM Power System E1180 (9080-HEU)\u003c/p\u003e\u003cp\u003eIBM strongly recommends customers with the products below install FW1060.81(1060_184) or newer to remediate this vulnerability as soon as possible.\u003c/p\u003e\u003cp\u003ePower 10\u003cbr/\u003e1) IBM Power System E1080 (9080-HEX)\u003c/p\u003e\u003cp\u003eIBM strongly recommends customers with the products below install FW950.H3(950_230) or newer to remediate this vulnerability as soon as possible.\u003c/p\u003e\u003cp\u003ePower 9\u003cbr/\u003e1) IBM Power System S922 (9009-22G)\u003cbr/\u003e2) IBM Power System H922 (9223-22S)\u003cbr/\u003e3) IBM Power System S914 (9009-41G)\u003cbr/\u003e4) IBM Power System S924 (9009-42G)\u003cbr/\u003e5) IBM Power System H924 (9223-42S)\u003cbr/\u003e6) IBM Power System E950 (9040-MR9)\u003cbr/\u003e7) IBM Power System E980 (9080-M9S)\u003c/p\u003e\u003cp\u003eThe images mentioned above can be located at IBM Fix Central : \u003ca href=\"https://www.ibm.com/support/fixcentral/\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/support/fixcentral/\u003c/a\u003e\u003c/p\u003e"
}
],
"value": "IBM strongly recommends customers with the products below install FW1120.01(1120_167), FW1110.31(1110_134) or newer to remediate this vulnerability as soon as possible.\nPower 11\n1) IBM Power System E1180 (9080-HEU)\nIBM strongly recommends customers with the products below install FW1060.81(1060_184) or newer to remediate this vulnerability as soon as possible.\nPower 10\n1) IBM Power System E1080 (9080-HEX)\nIBM strongly recommends customers with the products below install FW950.H3(950_230) or newer to remediate this vulnerability as soon as possible.\nPower 9\n1) IBM Power System S922 (9009-22G)\n2) IBM Power System H922 (9223-22S)\n3) IBM Power System S914 (9009-41G)\n4) IBM Power System S924 (9009-42G)\n5) IBM Power System H924 (9223-42S)\n6) IBM Power System E950 (9040-MR9)\n7) IBM Power System E980 (9080-M9S)\nThe images mentioned above can be located at IBM Fix Central : https://www.ibm.com/support/fixcentral/"
}
],
"title": "Power System Buffer Overflow",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eProtect access to the FSP\u0027s network interface.\u003c/p\u003e"
}
],
"value": "Protect access to the FSP\u0027s network interface."
}
]
}
},
"cveMetadata": {
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"assignerShortName": "ibm",
"cveId": "CVE-2026-16687",
"datePublished": "2026-08-19T18:56:41.912Z",
"dateReserved": "2026-07-23T00:09:08.103Z",
"dateUpdated": "2026-08-22T03:56:02.086Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.