CVE-2024-27837: A local attacker may gain access to Keychain items in Apple macOS
CVE-2024-27837 is a vulnerability in Apple macOS Sonoma that allows a local attacker to gain access to Keychain items due to a downgrade issue. This issue was addressed by Apple with additional code-signing restrictions in macOS Sonoma 14. 5, released on May 13, 2024. The vulnerability has a CVSS score of 7. 7, indicating high severity, and does not require user interaction or privileges to exploit beyond local access. The fix is officially available in macOS Sonoma 14. 5.
AI Analysis
Technical Summary
CVE-2024-27837 is a local privilege vulnerability in AppleMobileFileIntegrity on macOS Sonoma that arises from a downgrade issue. This flaw could allow a local attacker to access sensitive Keychain items by bypassing existing protections. Apple addressed this vulnerability by implementing additional code-signing restrictions in macOS Sonoma 14.5. The vulnerability has a CVSS 3.1 base score of 7.7 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N), indicating that it requires local access but no privileges or user interaction, and can lead to high confidentiality and integrity impact without affecting availability.
Potential Impact
A local attacker on a vulnerable macOS Sonoma system could gain unauthorized access to Keychain items, potentially exposing sensitive credentials and secrets stored therein. This compromises confidentiality and integrity of user data protected by the Keychain. There are no known exploits in the wild at this time. The vulnerability does not affect system availability.
Mitigation Recommendations
Apple has released an official fix for this vulnerability in macOS Sonoma 14.5. Users and administrators should apply this update promptly to remediate the issue. The vendor advisory confirms the issue is addressed by additional code-signing restrictions in the update. No further mitigation steps are required beyond applying the official patch.
CVE-2024-27837: A local attacker may gain access to Keychain items in Apple macOS
Description
CVE-2024-27837 is a vulnerability in Apple macOS Sonoma that allows a local attacker to gain access to Keychain items due to a downgrade issue. This issue was addressed by Apple with additional code-signing restrictions in macOS Sonoma 14. 5, released on May 13, 2024. The vulnerability has a CVSS score of 7. 7, indicating high severity, and does not require user interaction or privileges to exploit beyond local access. The fix is officially available in macOS Sonoma 14. 5.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2024-27837 is a local privilege vulnerability in AppleMobileFileIntegrity on macOS Sonoma that arises from a downgrade issue. This flaw could allow a local attacker to access sensitive Keychain items by bypassing existing protections. Apple addressed this vulnerability by implementing additional code-signing restrictions in macOS Sonoma 14.5. The vulnerability has a CVSS 3.1 base score of 7.7 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N), indicating that it requires local access but no privileges or user interaction, and can lead to high confidentiality and integrity impact without affecting availability.
Potential Impact
A local attacker on a vulnerable macOS Sonoma system could gain unauthorized access to Keychain items, potentially exposing sensitive credentials and secrets stored therein. This compromises confidentiality and integrity of user data protected by the Keychain. There are no known exploits in the wild at this time. The vulnerability does not affect system availability.
Mitigation Recommendations
Apple has released an official fix for this vulnerability in macOS Sonoma 14.5. Users and administrators should apply this update promptly to remediate the issue. The vendor advisory confirms the issue is addressed by additional code-signing restrictions in the update. No further mitigation steps are required beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2024-02-26T15:32:28.528Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69418d7a9050fe8508ffc0c6
Added to database: 12/16/2025, 4:48:58 PM
Last enriched: 4/9/2026, 11:16:46 PM
Last updated: 5/9/2026, 10:11:04 PM
Views: 102
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