Buffer overflow in Apple iOS And Ipados
CVE-2021-30916
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.016 (74.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Apple iOS And Ipados — versions unspecified
- Apple Ipad OS
- Apple Ipados — versions 15.0
- Apple Iphone OS — versions 15.0
- Apple macOS — versions unspecified, 12.0
- Apple Mac OS X — versions 10.15.7
- Apple tvOS
- Apple watchOS
Weakness classification (CWE)
Public proof-of-concept exploits
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)
Frequently asked questions
- What is CVE-2021-30916?
- CVE-2021-30916 is a high-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-08-24.
- How severe is CVE-2021-30916?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-30916 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.