Auth bypass in Apple iOS And Ipados
CVE-2021-30720
A logic issue was addressed with improved restrictions. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. A malicious website may be able to access restricted ports on arbitrary servers.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.014 (70.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Apple iOS And Ipados — versions unspecified
- Apple Ipados
- Apple Iphone OS
- Apple macOS — versions unspecified
- Apple Safari
- Apple tvOS
- Apple watchOS
Weakness classification (CWE)
References
- support.apple.com/en-us/HT212528 (Vendor Advisory)
- support.apple.com/en-us/HT212529 (Vendor Advisory)
- support.apple.com/en-us/HT212532 (Vendor Advisory)
- support.apple.com/en-us/HT212533 (Vendor Advisory)
- support.apple.com/en-us/HT212534 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-30720?
- CVE-2021-30720 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Improper Authentication. CVSS score: 5.4/10. Published 2021-09-08.
- How severe is CVE-2021-30720?
- Medium severity. CVSS v3 base score is 5.4 out of 10.