CVE-2021-30952
Apple Multiple Products Integer Overflow or Wraparound Vulnerability
CVSS
—
No CVSS
EPSS
7.0%
p94
KEV
YES
Mar 5, 2026
Exploit Today
78
0-100
Published: — · Last modified: —
Product
Apple / Multiple Products
Vulnerability
Apple Multiple Products Integer Overflow or Wraparound Vulnerability
Added to KEV
Mar 5, 2026
Remediate by
Mar 26, 2026
Known ransomware use
No
Summary description
Apple tvOS, macOS, Safari, iPadOS and watchOS contain an integer overflow or wraparound vulnerability due to the processing of maliciously crafted web content that may lead to arbitrary code execution.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://support.apple.com/en-us/HT212975 ; https://support.apple.com/en-us/HT212976 ; https://support.apple.com/en-us/HT212978 ; https://support.apple.com/en-us/HT212980 ; https://support.apple.com/en-us/HT212982 ; https://nvd.nist.gov/vuln/detail/CVE-2021-30952