CVE-2020-9974 json
A logic issue was addressed with improved state management.
published 2020-12-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-30753
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 65%
- public exploits
- 0
- none known
Summary
A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.2 and iPadOS 14.2, tvOS 14.2, watchOS 7.1. A malicious application may be able to determine kernel memory layout.
Patch / fix
- Apple watchOS 7.1
- Apple iOS and iPadOS 14.2
- Apple tvOS 14.2
- Apple macOS 11.0
Exploit prediction
1.10% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Affected products
- Apple watchOS
- Apple iOS and iPadOS
- Apple tvOS
- Apple macOS
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
/kb/HT212011
vendor-advisory
-
seclists.org
/fulldisclosure/2020/Dec/32
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2020/Dec/26
mailing-list, third-party-advisory
Sources
- CVE List CVE-2020-9974
- NVD CVE-2020-9974
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.