CVE-2026-84494 json
An out-of-bounds write issue was addressed with improved bounds checking.
published 2026-10-26 13 d ago modified 2026-11-04 5 d ago also EUVD-2026-110181
- 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 8%
- public exploits
- 0
- none known
Summary
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, visionOS 27.2. An app may be able to cause unexpected system termination or write kernel memory.
Patch / fix
- Apple iOS and iPadOS 27.2
- Apple macOS 27.2
- Apple visionOS 27.2
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 d ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
| NVD | 3.1 | 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
Affected products
- Apple iOS and iPadOS
- Apple macOS
- Apple visionOS
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
support.apple.com
/en-us/149230
release-notes, vendor-advisory
-
support.apple.com
/en-us/149521
release-notes, vendor-advisory
-
support.apple.com
/en-us/149526
release-notes, vendor-advisory
Sources
- CVE List CVE-2026-84494
- NVD CVE-2026-84494
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