Vulnerability in Apple iOS And Ipados
CVE-2026-20677
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.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (19.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Apple iOS And Ipados — versions 0
- Apple Ipados
- Apple Iphone OS
- Apple macOS — versions 0
- Apple Visionos — versions 0
Weakness classification (CWE)
References
- support.apple.com/en-us/126346 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126347 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126348 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126350 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126353 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126349
Frequently asked questions
- What is CVE-2026-20677?
- CVE-2026-20677 is a critical-severity vulnerability in Apple iOS And Ipados, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 9.0/10. Published 2026-02-11.
- How severe is CVE-2026-20677?
- Critical severity. CVSS v3 base score is 9.0 out of 10.