CVE-2021-1879
Summary
| CVE | CVE-2021-1879 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-04-02 19:15:00 UTC |
| Updated | 2023-01-09 16:41:00 UTC |
| 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.. |
Risk And Classification
EPSS: 0.008090000 probability, percentile 0.741650000 (date 2026-04-01)
CISA KEV: Listed on 2021-11-03; due 2021-11-17; ransomware use Unknown
Problem Types: CWE-79
CISA Known Exploited Vulnerability
| Vendor | Apple |
|---|---|
| Product | iOS, iPadOS, and watchOS |
| Name | Apple iOS, iPadOS, and watchOS WebKit Cross-Site Scripting (XSS) Vulnerability |
| Required Action | Apply updates per vendor instructions. |
| Notes | https://nvd.nist.gov/vuln/detail/CVE-2021-1879 |
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| About the security content of iOS 14.4.2 and iPadOS 14.4.2 - Apple Support | MISC | support.apple.com | |
| About the security content of watchOS 7.3.3 - Apple Support | MISC | support.apple.com | |
| About the security content of iOS 12.5.2 - Apple Support | MISC | support.apple.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.