What’s Vulnerable › Vulnerabilities

CVE-2026-20699

• Severity: medium (CVSS 6.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-25 · updated 2026-06-17
• Weakness: CWE-347

Description

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.

Affected products

• Apple macOS: from 14.0 before 14.8.5; from 15.0 before 15.7.5; from 26.0 before 26.3 — fixed in 14.8.5, 15.7.5, 26.3

How to fix

Upgrade to a fixed version: Apple macOS 14.8.5, 15.7.5, 26.3. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/126348
• https://support.apple.com/en-us/126794
• https://support.apple.com/en-us/126795
• https://support.apple.com/en-us/126796

Get alerted when CVE-2026-20699 or the next vulnerability affects your stack