cve-2023-41991
Vulnerability from cvelistv5
Published
2023-09-21 18:23
Modified
2024-08-02 19:16
Severity ?
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
product-security@apple.comhttps://support.apple.com/en-us/HT213927Vendor Advisory
product-security@apple.comhttps://support.apple.com/en-us/HT213931Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT213927Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT213931Vendor Advisory
Impacted products
Vendor Product Version
Apple macOS Version: unspecified   < 13.6
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

Show details on NVD website

To clipboard 

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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://support.apple.com/en-us/HT213927"
          },
          {
            "tags": [
              "x_transferred"
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            "url": "https://support.apple.com/en-us/HT213931"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "iOS and iPadOS",
          "vendor": "Apple",
          "versions": [
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              "status": "affected",
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              "versionType": "custom"
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      "descriptions": [
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          "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": [
        {
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      "providerMetadata": {
        "dateUpdated": "2024-01-10T22:03:18.435Z",
        "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "shortName": "apple"
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  "cveMetadata": {
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    "assignerShortName": "apple",
    "cveId": "CVE-2023-41991",
    "datePublished": "2023-09-21T18:23:48.974Z",
    "dateReserved": "2023-09-06T17:40:06.142Z",
    "dateUpdated": "2024-08-02T19:16:49.649Z",
    "state": "PUBLISHED"
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      "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",
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    },
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  }
}


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