CVE-2021-1870: Apple iOS, iPadOS, and macOS WebKit Remote Code Execution Vulnerability
Critical · CVSS 9.8 (CVSS 3.1)KEV known exploitedEPSS 7.7%, 95th percentilePublished Updated Assigner: apple
In CISA’s Known Exploited Vulnerabilities catalog: Apple iOS, iPadOS, and macOS WebKit Remote Code Execution Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions.
Description
A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Apple: iOS and iPadOSApple: macOS
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6Z… (opens in new tab)
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6… (opens in new tab)
- security.gentoo.org/glsa/202104-03 (opens in new tab)
- support.apple.com/en-us/HT212146 (opens in new tab)
- support.apple.com/en-us/HT212147 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)