Vulnerability in Apple iOS
CVE-2021-30773
An issue in code signature validation was addressed with improved checks. This issue is fixed in iOS 14.7, tvOS 14.7, watchOS 7.6. A malicious application may be able to bypass code signing checks.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.011 (65.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Apple iOS — versions unspecified
- Apple Iphone OS
- Apple tvOS — versions unspecified
- Apple watchOS — versions unspecified
Public proof-of-concept exploits
References
- support.apple.com/en-us/HT212601 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/HT212605 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/HT212604 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-30773?
- CVE-2021-30773 is a medium-severity vulnerability in Apple iOS. CVSS score: 5.5/10. Published 2021-09-08.
- How severe is CVE-2021-30773?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2021-30773 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.