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Case File

CVE-2021-29961

MEDIUM · CVSS 4.3 EPSS 0.76%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-06-24 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. It affects Firefox.

CVE
CVE-2021-29961
Severity
MEDIUM
CVSS
4.3
EPSS
0.76%
Firefox

Original NVD Description

When styling and rendering an oversized `<select>` element, Firefox did not apply correct clipping which allowed an attacker to paint over the user interface. This vulnerability affects Firefox < 89.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-16412 CRITICAL CVE-2026-16411 CRITICAL CVE-2026-16410 CRITICAL CVE-2026-16409 HIGH CVE-2026-16408 CRITICAL CVE-2026-16407 CRITICAL