CVE-2026-28860: A local attacker may be able to modify the state of the Keychain in Apple iOS and iPadOS
The issue was addressed with improved input validation. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. A local attacker may be able to modify the state of the Keychain.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-28860) affects Apple iOS and iPadOS, allowing a local attacker to modify the Keychain state due to insufficient input validation. The vulnerability is classified under CWE-20 (Improper Input Validation). Apple addressed the issue by improving input validation and released fixes in iOS 18.7.7, iPadOS 18.7.7, and other related OS versions. The CVSS 3.1 base score is 7.5 with vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, high confidentiality impact, no integrity or availability impact. No known exploits have been reported in the wild. The vulnerability is not related to cloud services.
Potential Impact
A local attacker could modify the state of the Keychain, potentially compromising sensitive credential storage confidentiality. The CVSS score of 7.5 reflects a high impact on confidentiality but no impact on integrity or availability. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Apple has released official fixes for this vulnerability in iOS 18.7.7, iPadOS 18.7.7, and other related OS versions. Users and administrators should apply these updates promptly to remediate the issue. No additional mitigations are specified or required beyond applying the official patches.
CVE-2026-28860: A local attacker may be able to modify the state of the Keychain in Apple iOS and iPadOS
Description
The issue was addressed with improved input validation. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. A local attacker may be able to modify the state of the Keychain.
CVSS v3.1
Score 7.5high
Affected software
Apple
iOS and iPadOS
Apple
macOS
Apple
tvOS
Apple
visionOS
Apple
watchOS
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-28860) affects Apple iOS and iPadOS, allowing a local attacker to modify the Keychain state due to insufficient input validation. The vulnerability is classified under CWE-20 (Improper Input Validation). Apple addressed the issue by improving input validation and released fixes in iOS 18.7.7, iPadOS 18.7.7, and other related OS versions. The CVSS 3.1 base score is 7.5 with vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, high confidentiality impact, no integrity or availability impact. No known exploits have been reported in the wild. The vulnerability is not related to cloud services.
Potential Impact
A local attacker could modify the state of the Keychain, potentially compromising sensitive credential storage confidentiality. The CVSS score of 7.5 reflects a high impact on confidentiality but no impact on integrity or availability. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Apple has released official fixes for this vulnerability in iOS 18.7.7, iPadOS 18.7.7, and other related OS versions. Users and administrators should apply these updates promptly to remediate the issue. No additional mitigations are specified or required beyond applying the official patches.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-03-03T16:36:03.972Z
- State
- PUBLISHED
Threat ID: 6a02874ccbff5d86108b53a0
Added to database: 05/12/2026, 01:50:04 UTC
Last enriched: 05/19/2026, 10:57:10 UTC
Last updated: 09/14/2026, 10:01:30 UTC
Views: 177
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