medium6.1Known exploited
CVE-2021-1879
Apple iOS, iPadOS, and watchOS WebKit Cross-Site Scripting (XSS) Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2021-11-03. Federal due date: 2021-11-17.
Apply updates per vendor instructions.
Impact
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..
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apple | Ipados | before 14.4.2 |
| Apple | Iphone Os | before 12.5.2 from 13.0 before 14.4.2 |
| Apple | Watchos | before 7.3.3 |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- https://support.apple.com/en-us/HT212256
- https://support.apple.com/en-us/HT212257
- https://support.apple.com/en-us/HT212258
- https://support.apple.com/en-us/HT212256
- https://support.apple.com/en-us/HT212257
- https://support.apple.com/en-us/HT212258
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1879