CVE-2020-27933 json
A memory corruption issue was addressed with improved input validation.
published 2021-04-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-20426
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, iCloud for Windows 7.20, watchOS 6.2.8, tvOS 13.4.8, macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. Processing a maliciously crafted image may lead to arbitrary code execution.
Patch / fix
- Apple iOS and iPadOS 13.6
- Apple macOS 6.2, 7.20, 10.15, 13.4
Exploit prediction
1.03% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/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 iOS and iPadOS
- Apple macOS
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
support.apple.com
/en-us/HT211289
vendor-advisory
-
support.apple.com
/en-us/HT211288
vendor-advisory
-
support.apple.com
/en-us/HT211290
vendor-advisory
-
support.apple.com
/en-us/HT211291
vendor-advisory
-
support.apple.com
/en-us/HT211295
vendor-advisory
Sources
- CVE List CVE-2020-27933
- NVD CVE-2020-27933
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.