Home / Vulnerabilities / CVE-2021-30952
HIGH SEVERITY
CVE-2021-30952Apple · Multiple Products

Apple Multiple Products Integer Overflow or Wraparound Vulnerability

Technical Severity

CVSS v3.1 Metrics

HIGH
7.8 / 10
Minimal Risk Critical
Vector Specification
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitation Likelihood

EPSS Prediction

1.28 %
Predictive Probability
Percentile Rank
79.5 th

Documented as more likely to be exploited than 79.5% of known CVEs.

Detection Date

Mar 05, 2026

Remediation Due

Mar 26, 2026

CISA Catalog Active

Threat Analysis

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.

Remediation Directive

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

External Intelligence

https://support.apple.com/en-us/HT212975

https://support.apple.com/en-us/HT212975

https://support.apple.com/en-us/HT212976

https://support.apple.com/en-us/HT212976

https://support.apple.com/en-us/HT212978

https://support.apple.com/en-us/HT212978

https://support.apple.com/en-us/HT212980

https://support.apple.com/en-us/HT212980

https://support.apple.com/en-us/HT212982

https://support.apple.com/en-us/HT212982

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2021-30952