CVE-2026-20690 json
An out-of-bounds access issue was addressed with improved bounds checking.
published 2026-03-25 7 mo ago modified 2026-10-26 13 d ago also EUVD-2026-15060
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. Processing an audio stream in a maliciously crafted media file may terminate the process.
Patch / fix
- Apple iOS and iPadOS 18.7.7, 26.4
- Apple macOS 14.8.5, 15.7.5, 26.4
- Apple tvOS 26.4
- Apple visionOS 26.4
- Apple watchOS 26.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
Affected products
- Apple iOS and iPadOS
- Apple macOS
- Apple tvOS
- Apple visionOS
- Apple watchOS
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
support.apple.com
/en-us/126792
release-notes, vendor-advisory
-
support.apple.com
/en-us/126793
release-notes, vendor-advisory
-
support.apple.com
/en-us/126794
release-notes, vendor-advisory
-
support.apple.com
/en-us/126795
release-notes, vendor-advisory
-
support.apple.com
/en-us/126796
release-notes, vendor-advisory
-
support.apple.com
/en-us/126797
release-notes, vendor-advisory
-
support.apple.com
/en-us/126798
release-notes, vendor-advisory
-
support.apple.com
/en-us/126799
release-notes, vendor-advisory
Sources
- CVE List CVE-2026-20690
- NVD CVE-2026-20690
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.