CVE-2026-43704 json
A use-after-free issue was addressed with improved memory management.
published 2026-06-29 4 mo ago modified 2026-07-27 3 mo ago also EUVD-2026-40198
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 33%
- public exploits
- 0
- none known
Summary
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. A malicious web extension may be able to cause an unexpected process crash.
Patch / fix
- Apple Safari 26.5.2
- Apple iOS and iPadOS 26.5.2
- Apple macOS 26.5.2
- Apple tvOS 26.6
- Apple visionOS 26.6
- Apple watchOS 26.6
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H |
Affected products
- Apple Safari
- Apple iOS and iPadOS
- Apple macOS
- Apple tvOS
- Apple visionOS
- Apple watchOS
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
support.apple.com
/en-us/127594
vendor-advisory
-
support.apple.com
/en-us/127595
vendor-advisory
-
support.apple.com
/en-us/127685
vendor-advisory
- support.apple.com /en-us/128068
- support.apple.com /en-us/128069
- support.apple.com /en-us/128070
Sources
- CVE List CVE-2026-43704
- NVD CVE-2026-43704
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.