CVE-2026-43771 json
A stack overflow was addressed with improved input validation.
published 3mo ago modified 16d ago also EUVD-2026-49424
- cvss
- 7.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 7%
- public exploits
- 0
- none known
Summary
A stack overflow was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause a denial-of-service.
Patch / fix
- Apple macOS 14.8.8, 15.7.8, 26.6
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 3mo ago
Exploit prediction
0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H |
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H |
Affected products
- Apple macOS
Classification
- Weakness
-
- CWE-121 Stack-based Buffer Overflow
References
-
support.apple.com
/en-us/128067
release-notes, vendor-advisory
-
support.apple.com
/en-us/128071
release-notes, vendor-advisory
-
support.apple.com
/en-us/128072
release-notes, vendor-advisory
Sources
- CVE List CVE-2026-43771
- NVD CVE-2026-43771
Fencer Intel 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.