CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.

Remediation Deadline: Nov 17, 2021

CVE-2021-1879

High

EPSS 0.8%CISA KEV

Apple/iOS, iPadOS, and watchOS

Description

Apple iOS, iPadOS, and watchOS WebKit contain an unspecified vulnerability that allows for universal cross-site scripting (XSS) when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

EPSS — Exploit Probability

0.8%

Higher than 74.0% of all CVEs

Required Action

https://nvd.nist.gov/vuln/detail/CVE-2021-1879

Risk Assessment

ELEVATED

In CISA KEV

Details

Severity: High
EPSS: 0.8%
CISA KEV: Yes
Ransomware: Unknown
Articles: 0

Timeline

Published

Nov 3, 2021

Added to KEV

Nov 3, 2021

Remediation Due

Nov 17, 2021

Affected Product

Apple

iOS, iPadOS, and watchOS

View all Apple CVEs

External Links

NVD (NIST)CVE Details MITRE CVE