High severity · published Apr 2, 2021
CVE-2021-1736
An out-of-bounds read was addressed with improved input validation
7.8
CVSS
0.9%
EPSS
No
On KEV
Description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. Processing a maliciously crafted image may lead to arbitrary code execution.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
11.0 before 11.2 · source: NVD
MO
Mac OS X · Apple
10.14 before 10.14.6; 10.15 before 10.15.7; 10.14.6; 10.14.6; 10.14.6; 10.14.6; +13 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-1736
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-1736
Vendor Advisory
https://support.apple.com/en-us/HT212147
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