CVE-2026-28819 json
An out-of-bounds write issue was addressed with improved bounds checking.
published 2026-05-11 5 mo ago modified 2026-11-03 5 d ago also EUVD-2026-29215
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 6.5%
- EPSS 6.5% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. An app may be able to execute arbitrary code with kernel privileges.
Patch / fix
- Apple iOS and iPadOS 18.7.9
- Apple macOS 14.8.7, 15.7.7, 26.5
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
6.50% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
Affected products
- Apple iOS and iPadOS
- Apple macOS
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
support.apple.com
/en-us/127111
release-notes, vendor-advisory
-
support.apple.com
/en-us/127115
release-notes, vendor-advisory
-
support.apple.com
/en-us/127116
release-notes, vendor-advisory
-
support.apple.com
/en-us/127117
release-notes, vendor-advisory
Sources
- CVE List CVE-2026-28819
- NVD CVE-2026-28819
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