What’s Vulnerable › Vulnerabilities

CVE-2026-20677

• Severity: critical (CVSS 9.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-11 · updated 2026-08-21
• Weakness: CWE-362

Description

A race condition was addressed with improved handling of symbolic links. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3. A shortcut may be able to bypass sandbox restrictions.

Affected products

• Apple iPadOS: before 18.7.5; from 26.0 before 26.3 — fixed in 18.7.5, 26.3
• Apple Iphone Os: before 18.7.5; from 26.0 before 26.3 — fixed in 18.7.5, 26.3
• Apple macOS: before 14.8.4; from 26.0 before 26.3 — fixed in 14.8.4, 26.3
• Apple visionOS: before 26.3 — fixed in 26.3

How to fix

Upgrade to a fixed version: Apple iPadOS 18.7.5, 26.3; Apple Iphone Os 18.7.5, 26.3; Apple macOS 14.8.4, 26.3; Apple visionOS 26.3. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/126346
• https://support.apple.com/en-us/126347
• https://support.apple.com/en-us/126348
• https://support.apple.com/en-us/126349
• https://support.apple.com/en-us/126350
• https://support.apple.com/en-us/126353

Get alerted when CVE-2026-20677 or the next vulnerability affects your stack