CVE-2021-1879: Apple iOS, iPadOS, and watchOS WebKit Cross-Site Scripting (XSS) Vulnerability
Medium · CVSS 6.1 (CVSS 3.1)KEV known exploitedEPSS 7.1%, 94th percentilePublished Updated Assigner: apple
In CISA’s Known Exploited Vulnerabilities catalog: Apple iOS, iPadOS, and watchOS WebKit Cross-Site Scripting (XSS) Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions.
Description
This issue was addressed by improved management of object lifetimes. This issue is fixed in iOS 12.5.2, iOS 14.4.2 and iPadOS 14.4.2, watchOS 7.3.3. Processing maliciously crafted web content may lead to universal cross site scripting. 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:R/S:C/C:L/I:L/A:N
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Apple: iOSApple: iOS and iPadOSApple: watchOS
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- support.apple.com/en-us/HT212256 (opens in new tab)
- support.apple.com/en-us/HT212257 (opens in new tab)
- support.apple.com/en-us/HT212258 (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)