high7.8Known exploited
CVE-2021-30952
Apple Multiple Products Integer Overflow or Wraparound Vulnerability
Exploited in the wild
This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2026-03-05. Federal due date: 2026-03-26.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apple | Safari | before 15.2 |
| Apple | Ipados | before 15.2 |
| Apple | Iphone Os | before 15.2 |
| Apple | Macos | from 12.0 before 12.1 |
| Apple | Tvos | before 15.2 |
| Apple | Watchos | before 8.3 |
| Fedoraproject | Fedora | Versions 34, 35 |
| Debian | Debian Linux | Versions 10.0, 11.0 |
| Webkitgtk | Webkitgtk | before 2.34.4 |
| Wpewebkit | Wpe Webkit | before 2.34.4 |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- http://www.openwall.com/lists/oss-security/2022/01/21/2
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7EQVZ3CEMTINLBZ7PBC7WRXVEVCRHNSM/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HQKWD4BXRDD2YGR5AVU7H5J5PIQIEU6V/
- 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://www.debian.org/security/2022/dsa-5060
- https://www.debian.org/security/2022/dsa-5061
- https://cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30952