CVE-2026-84510 json
A heap buffer overflow was addressed with improved bounds checking.
published last mo. modified 16d ago also EUVD-2026-77858
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
A heap buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Mounting a maliciously crafted volume may lead to unexpected system termination.
Patch / fix
- Apple iOS and iPadOS 26.7, 27
- Apple macOS 15.8, 26.7, 27
Is CVE-2026-84510 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-11).
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
Classification
- Weakness
-
- CWE-122 Heap-based Buffer Overflow
References
-
support.apple.com
/en-us/149034
vendor-advisory
-
support.apple.com
/en-us/149035
vendor-advisory
-
support.apple.com
/en-us/149041
vendor-advisory
-
support.apple.com
/en-us/149042
vendor-advisory
-
support.apple.com
/en-us/149043
vendor-advisory
Sources
- CVE List CVE-2026-84510
- NVD CVE-2026-84510
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