CVE-2021-30952

CISA 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 & references

• 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

Where this lands in 800-53

Vulnerability data triggers these controls during assessment and continuous monitoring.

• RA-5 · Vulnerability Monitoring and Scanning
• SI-2 · Flaw Remediation
• CM-6 · Configuration Settings
• SI-7 · Software, Firmware, and Information Integrity
• CM-8 · System Component Inventory

External lookups

• NVD · CVE-2021-30952
• CVE.org · CVE-2021-30952
• CISA KEV catalog (canonical)