CVE Watch—

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

0-100

Published: — · Last modified: —

EPSS · 30d

7.0%EPSS · 30 days7.6%

2026-08-032026-08-31

KEV catalog record

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

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

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