CVE-2021-1864 json
A use after free issue was addressed with improved memory management.
published 2021-09-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-7328
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.2%
- EPSS 2.2% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. An attacker with JavaScript execution may be able to execute arbitrary code.
Patch / fix
- Apple iOS and iPadOS 14.5
- Apple tvOS 14.5
- Apple watchOS 7.4
Exploit prediction
2.15% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Apple iOS and iPadOS
- Apple tvOS
- Apple watchOS
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
support.apple.com
/en-us/HT212317
vendor-advisory
-
support.apple.com
/en-us/HT212323
vendor-advisory
-
support.apple.com
/en-us/HT212324
vendor-advisory
Sources
- CVE List CVE-2021-1864
- NVD CVE-2021-1864
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.