CVE-2020-27920 json
A use after free issue was addressed with improved memory management.
published 2021-04-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-20413
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
Summary
A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1, iOS 14.2 and iPadOS 14.2, watchOS 7.1, tvOS 14.2. Processing maliciously crafted web content may lead to code execution.
Patch / fix
- Apple watchOS 7.1
- Apple iOS and iPadOS 14.2
- Apple tvOS 14.2
- Apple macOS 11.0, 11.1
Exploit prediction
1.23% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- Apple watchOS
- Apple iOS and iPadOS
- Apple tvOS
- Apple macOS
Classification
- Weakness
-
- CWE-416 Use After Free
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
-
support.apple.com
/en-us/HT212011
vendor-advisory
Sources
- CVE List CVE-2020-27920
- NVD CVE-2020-27920
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.