CVE-2021-30656 json
An access issue was addressed with improved memory management.
published 2021-09-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17573
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
An access issue was addressed with improved memory management. This issue is fixed in iOS 14.5 and iPadOS 14.5. A malicious application may be able to determine kernel memory layout.
Patch / fix
- Apple iOS and iPadOS 14.5
Exploit prediction
0.86% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 7.1 | AV:N/AC:M/Au:N/C:C/I:N/A:N |
Affected products
- Apple iOS and iPadOS
References
-
support.apple.com
/en-us/HT212317
vendor-advisory
Sources
- CVE List CVE-2021-30656
- NVD CVE-2021-30656
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.