CVE-2023-41991 (GCVE-0-2023-41991)
Vulnerability from cvelistv5
Published
2023-09-21 18:23
Modified
2025-11-04 19:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
Summary
A certificate validation issue was addressed. This issue is fixed in macOS Ventura 13.6, iOS 16.7 and iPadOS 16.7. A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| ► | Apple | iOS and iPadOS |
Version: unspecified < 16.7 |
|
CISA Known exploited vulnerability
Data from the Known Exploited Vulnerabilities Catalog
Date added: 2023-09-25
Due date: 2023-10-16
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Used in ransomware: Unknown
Notes: https://support.apple.com/en-us/HT213926, https://support.apple.com/en-us/HT213927, https://support.apple.com/en-us/HT213928, https://support.apple.com/en-us/HT213929, https://support.apple.com/en-us/HT213931 ; https://nvd.nist.gov/vuln/detail/CVE-2023-41991
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-04T19:21:39.550Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://support.apple.com/en-us/HT213927"
},
{
"tags": [
"x_transferred"
],
"url": "https://support.apple.com/en-us/HT213931"
},
{
"url": "https://support.apple.com/kb/HT213931"
},
{
"url": "https://support.apple.com/kb/HT213927"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-41991",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-04T15:13:21.191475Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2023-09-25",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-41991"
},
"type": "kev"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-295",
"description": "CWE-295 Improper Certificate Validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-21T23:05:37.441Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-41991"
}
],
"timeline": [
{
"lang": "en",
"time": "2023-09-25T00:00:00+00:00",
"value": "CVE-2023-41991 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "iOS and iPadOS",
"vendor": "Apple",
"versions": [
{
"lessThan": "16.7",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "macOS",
"vendor": "Apple",
"versions": [
{
"lessThan": "13.6",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A certificate validation issue was addressed. This issue is fixed in macOS Ventura 13.6, iOS 16.7 and iPadOS 16.7. A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-01-10T22:03:18.435Z",
"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
"shortName": "apple"
},
"references": [
{
"url": "https://support.apple.com/en-us/HT213927"
},
{
"url": "https://support.apple.com/en-us/HT213931"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
"assignerShortName": "apple",
"cveId": "CVE-2023-41991",
"datePublished": "2023-09-21T18:23:48.974Z",
"dateReserved": "2023-09-06T17:40:06.142Z",
"dateUpdated": "2025-11-04T19:21:39.550Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"cisa_known_exploited": {
"cveID": "CVE-2023-41991",
"cwes": "[\"CWE-295\"]",
"dateAdded": "2023-09-25",
"dueDate": "2023-10-16",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://support.apple.com/en-us/HT213926, https://support.apple.com/en-us/HT213927, https://support.apple.com/en-us/HT213928, https://support.apple.com/en-us/HT213929, https://support.apple.com/en-us/HT213931 ; https://nvd.nist.gov/vuln/detail/CVE-2023-41991",
"product": "Multiple Products",
"requiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
"shortDescription": "Apple iOS, iPadOS, macOS, and watchOS contain an improper certificate validation vulnerability that can allow a malicious app to bypass signature validation.",
"vendorProject": "Apple",
"vulnerabilityName": "Apple Multiple Products Improper Certificate Validation Vulnerability"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://support.apple.com/en-us/HT213927\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://support.apple.com/en-us/HT213931\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T19:16:49.649Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-41991\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-04T15:13:21.191475Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2023-09-25\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-41991\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2023-09-25T00:00:00+00:00\", \"value\": \"CVE-2023-41991 added to CISA KEV\"}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-41991\", \"tags\": [\"government-resource\"]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-295\", \"description\": \"CWE-295 Improper Certificate Validation\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-03T13:55:14.143Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"Apple\", \"product\": \"iOS and iPadOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"16.7\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Apple\", \"product\": \"macOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"13.6\", \"versionType\": \"custom\"}]}], \"references\": [{\"url\": \"https://support.apple.com/en-us/HT213927\"}, {\"url\": \"https://support.apple.com/en-us/HT213931\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A certificate validation issue was addressed. This issue is fixed in macOS Ventura 13.6, iOS 16.7 and iPadOS 16.7. A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.\"}]}], \"providerMetadata\": {\"orgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"shortName\": \"apple\", \"dateUpdated\": \"2024-01-10T22:03:18.435Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2023-41991\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:05:37.441Z\", \"dateReserved\": \"2023-09-06T17:40:06.142Z\", \"assignerOrgId\": \"286789f9-fbc2-4510-9f9a-43facdede74c\", \"datePublished\": \"2023-09-21T18:23:48.974Z\", \"assignerShortName\": \"apple\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
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.
- 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.
Loading…
Loading…