{"id":"CVE-2023-41991","state":"PUBLISHED","title":"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","description":"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.","publishedAt":"2023-09-21T18:23:48.974Z","updatedAt":"2025-11-04T19:21:39.550Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","source":"CISA-ADP"},"assigner":"apple","products":["Apple iOS and iPadOS","Apple macOS"],"affected":[{"vendor":"Apple","product":"iOS and iPadOS","versions":[{"version":"unspecified","status":"affected","lessThan":"16.7","versionType":"custom"}]},{"vendor":"Apple","product":"macOS","versions":[{"version":"unspecified","status":"affected","lessThan":"13.6","versionType":"custom"}]}],"references":["https://support.apple.com/en-us/HT213927","https://support.apple.com/en-us/HT213931","https://support.apple.com/kb/HT213931","https://support.apple.com/kb/HT213927","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-41991"],"weaknesses":["CWE-295"],"ingestedAt":"2026-10-29T20:06:17.512Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/41xxx/CVE-2023-41991.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-41991","state":"PUBLISHED","datePublished":"2023-09-21T18:23:48.974Z","dateUpdated":"2025-11-04T19:21:39.550Z","assignerShortName":"apple","assignerOrgId":"286789f9-fbc2-4510-9f9a-43facdede74c","dateReserved":"2023-09-06T17:40:06.142Z"},"containers":{"cna":{"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."}],"affected":[{"vendor":"Apple","product":"iOS and iPadOS","versions":[{"version":"unspecified","status":"affected","lessThan":"16.7","versionType":"custom"}]},{"vendor":"Apple","product":"macOS","versions":[{"version":"unspecified","status":"affected","lessThan":"13.6","versionType":"custom"}]}],"references":[{"url":"https://support.apple.com/en-us/HT213927"},{"url":"https://support.apple.com/en-us/HT213931"}],"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":{"shortName":"apple","orgId":"286789f9-fbc2-4510-9f9a-43facdede74c","dateUpdated":"2024-01-10T22:03:18.435Z"}},"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"]},{"url":"https://support.apple.com/kb/HT213931"},{"url":"https://support.apple.com/kb/HT213927"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-04T19:21:39.550Z"}},{"title":"CISA ADP Vulnrichment","references":[{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-41991","tags":["government-resource"]}],"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"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-295","lang":"en","type":"CWE","description":"CWE-295 Improper Certificate Validation"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-21T23:05:37.441Z"},"timeline":[{"time":"2023-09-25T00:00:00.000Z","lang":"en","value":"CVE-2023-41991 added to CISA KEV"}]}]}}}