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An attacker with arbitrary read and write capability may be able to bypass Pointer Authentication.","epss":{"date":"2026-11-12","epss":0.01502,"percentile":0.74671},"epss_checked":1794522003,"first_seen":1793852400,"kev":{"cveID":"CVE-2024-27834","cwes":["CWE-287"],"dateAdded":"2026-11-04","dueDate":"2026-11-18","forensicTriage":"No","knownRansomwareCampaignUse":"Unknown","notes":"https://support.apple.com/en-us/120896 ; https://support.apple.com/en-us/120898 ; https://support.apple.com/en-us/120901 ; https://support.apple.com/en-us/120902 ; https://support.apple.com/en-us/120903 ; https://support.apple.com/en-us/120905 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2024-27834","product":"Multiple Products","requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA\u2019s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA\u2019s \u201cForensics Triage Requirements\u201d (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","shortDescription":"Apple iOS, iPadOS, macOS, Safari, tvOS and watchOS 10.5 contain an improper authentication vulnerability which could allow an attacker with arbitrary read and write capability to bypass pointer authentication.","vendorProject":"Apple","vulnerabilityName":"Apple Multiple Products Improper Authentication Vulnerability"},"kev_checked":1794522003,"products":"Apple Safari, Apple iOS and iPadOS, Apple macOS, Apple tvOS, Apple watchOS","references":["https://support.apple.com/en-us/120896","https://support.apple.com/en-us/120898","https://support.apple.com/en-us/120901","https://support.apple.com/en-us/120902","https://support.apple.com/en-us/120903","https://support.apple.com/en-us/120905","https://www.sekoia.com/blog/poisoned-source-apt29-watering-holes-targets-mobile-devices-with-n-day-exploits","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-27834","https://support.apple.com/en-us/HT214101","https://support.apple.com/en-us/HT214106","https://support.apple.com/en-us/HT214104","https://support.apple.com/en-us/HT214103","https://support.apple.com/en-us/HT214102","http://seclists.org/fulldisclosure/2024/May/17","http://www.openwall.com/lists/oss-security/2024/05/21/1","http://seclists.org/fulldisclosure/2024/May/10","http://seclists.org/fulldisclosure/2024/May/9","http://seclists.org/fulldisclosure/2024/May/12","http://seclists.org/fulldisclosure/2024/May/16","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WKIXADCW3O4R2OOSDZGPU55XQFE6NA3M/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ADCLQW54XN37VJZNYD3UKCYATJFIMYXG/","https://support.apple.com/kb/HT214106","https://support.apple.com/kb/HT214104","https://support.apple.com/kb/HT214102","https://support.apple.com/kb/HT214100"],"score":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","provider":"CISA-ADP","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"solutions":"","state":"PUBLISHED","title":"Apple Multiple Products Improper Authentication Vulnerability","updated_at":1794500401,"workarounds":""},"sources":[{"canonical_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-27834","id":193,"publisher":"CISA KEV","title":"Apple Multiple Products Improper Authentication Vulnerability"}]}