CVE-2020-9961 json
An out-of-bounds read was addressed with improved input validation.
published 2020-10-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-30740
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.7, Security Update 2020-005 High Sierra, Security Update 2020-005 Mojave. Processing a maliciously crafted image may lead to arbitrary code execution.
Patch / fix
- Apple macOS 10.15
Exploit prediction
1.59% chance of exploitation in the next 30 days, higher than 75% 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 macOS
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
support.apple.com
/kb/HT211843
vendor-advisory
-
support.apple.com
/kb/HT211850
vendor-advisory
-
support.apple.com
/kb/HT211844
vendor-advisory
-
support.apple.com
/en-us/HT211849
release-notes, vendor-advisory
-
support.apple.com
/kb/HT211952
vendor-advisory
-
support.apple.com
/kb/HT211935
vendor-advisory
-
seclists.org
/fulldisclosure/2020/Nov/19
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2020/Nov/20
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2020/Nov/22
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2020/Nov/21
mailing-list, third-party-advisory
Sources
- CVE List CVE-2020-9961
- NVD CVE-2020-9961
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.