VULNERABILITY INTELLIGENCE

CVE-2021-1879

CVSS score6.1 MEDIUM
EPSS probability7.08%
CISA KEVKnown exploited vulnerability
Published2021-04-02
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Known Exploited Vulnerability

Apple iOS, iPadOS, and watchOS WebKit Cross-Site Scripting (XSS) Vulnerability

Vendor / product: Apple / iOS, iPadOS, and watchOS

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..

Weakness classification

  • nvd@nist.gov: CWE-79
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-79

Primary references