VDB
CVE-2026-20699
CVE-2026-20699
PUBLISHED
CVSS 8.699999809265137 HIGH
A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3, macOS Tahoe 26.4. An app may be able to access user-sensitive data.
EPSS 0.14% · 3.5th percentile
Risk Scores
CVSS 4.0
8.699999809265137
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS Score
0.14%
3.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | macOS | 0, 0, 0 |
| apple | macos | 15.0, 26.0, 14.0 |
Timeline
- Mar 25, 2026 CVE Published
- Mar 25, 2026 EPSS Score
- Mar 25, 2026 Coalition ESS Score
- Mar 25, 2026 PoC Published
- Mar 26, 2026 PoC Published
- Mar 26, 2026 PoC Published
- Mar 26, 2026 PoC Published
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
References
- https://support.apple.com/en-us/126793 advisory
- https://support.apple.com/en-us/126794 advisory
- https://support.apple.com/en-us/126798 advisory
- https://support.apple.com/en-us/126800 advisory
- https://support.apple.com/en-us/126796 advisory
- https://support.apple.com/en-us/126792 advisory
- https://support.apple.com/en-us/126795 advisory
- https://support.apple.com/en-us/126799 advisory
- https://support.apple.com/en-us/126797 advisory
- https://support.apple.com/en-us/126801 advisory
- https://support.apple.com/en-us/126348 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-20699 advisory