CVE-2021-30916 json
A memory corruption issue was addressed with improved memory handling.
published 2021-08-24 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17833
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.
Patch / fix
- Apple iOS and iPadOS 14.8, 15.1
- Apple macOS 11.6, 12.0, 2021
Exploit prediction
1.56% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Affected products
- Apple iOS and iPadOS
- Apple macOS
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
- support.apple.com /en-us/HT212869
- support.apple.com /en-us/HT212871
- support.apple.com /en-us/HT212872
- support.apple.com /en-us/HT212867
- support.apple.com /en-us/HT212868
- support.apple.com /kb/HT212975
- support.apple.com /kb/HT212980
-
seclists.org
/fulldisclosure/2021/Dec/43
mailing-list
-
seclists.org
/fulldisclosure/2021/Dec/44
mailing-list
Sources
- CVE List CVE-2021-30916
- NVD CVE-2021-30916
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.