Vulnerability in Apple iOS And Ipados
CVE-2026-20667
A logic issue was addressed with improved checks. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, watchOS 26.3. An app may be able to break out of its sandbox.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (2.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Apple iOS And Ipados — versions 0
- Apple Ipados
- Apple Iphone OS
- Apple macOS — versions 0
- Apple watchOS — versions 0
Weakness classification (CWE)
References
- support.apple.com/en-us/126346 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126348 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126349 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126350 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126352 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-20667?
- CVE-2026-20667 is a high-severity vulnerability in Apple iOS And Ipados, classified under Protection Mechanism Failure. CVSS score: 8.8/10. Published 2026-02-11.
- How severe is CVE-2026-20667?
- High severity. CVSS v3 base score is 8.8 out of 10.