CVE-2020-9944 json
An out-of-bounds read was addressed with improved bounds checking.
published 5y ago modified 4mo ago also EUVD-2020-30723
- cvss
- 5.5
- 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 67%
- public exploits
- 0
- none known
Summary
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, tvOS 14.0, iOS 14.0 and iPadOS 14.0. An application may be able to read restricted memory.
Patch / fix
- Apple tvOS 14.0
- Apple watchOS 7.0
- Apple iOS and iPadOS 14.0
- Apple macOS 11.0
Is CVE-2020-9944 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.15% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).
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 tvOS
- Apple watchOS
- Apple iOS and iPadOS
- Apple macOS
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
support.apple.com
/en-us/HT211843
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT211850
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT211844
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT211931
release-notes, 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-2020-9944
- NVD CVE-2020-9944
Fencer Intel 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.