Use After Free in Apple iOS And Ipados
CVE-2020-27899
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.2 and iPadOS 14.2, macOS Big Sur 11.0.1, watchOS 7.1, tvOS 14.2. A local attacker may be able to elevate their privileges.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (17.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Apple iOS And Ipados — versions unspecified
- Apple Ipados
- Apple Iphone OS
- Apple macOS — versions unspecified
- Apple tvOS — versions unspecified
- Apple watchOS — versions unspecified
Weakness classification (CWE)
References
- support.apple.com/en-us/HT211931 (Vendor Advisory)
- support.apple.com/en-us/HT211928 (Vendor Advisory)
- support.apple.com/en-us/HT211929 (Vendor Advisory)
- support.apple.com/en-us/HT211930 (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-27899?
- CVE-2020-27899 is a high-severity vulnerability in Apple iOS And Ipados, classified under Use After Free. CVSS score: 7.8/10. Published 2021-04-02.
- How severe is CVE-2020-27899?
- High severity. CVSS v3 base score is 7.8 out of 10.