CVE-2023-42866 json
The issue was addressed with improved memory handling.
published 2024-01-10 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-47287
- cvss
- 8.8
- 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
The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, tvOS 16.6, Safari 16.6, watchOS 9.6. Processing web content may lead to arbitrary code execution.
Patch / fix
- Apple Safari 16.6
- Apple tvOS 16.6
- Apple iOS and iPadOS 16.6
- Apple macOS 13.5
- Apple watchOS 9.6
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 18 mo ago
Exploit prediction
0.76% 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 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
- Apple Safari
- Apple tvOS
- Apple iOS and iPadOS
- Apple macOS
- Apple watchOS
References
-
support.apple.com
/en-us/HT213847
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT213846
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT213841
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT213843
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT213848
release-notes, vendor-advisory
Sources
- CVE List CVE-2023-42866
- NVD CVE-2023-42866
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.