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Case File

CVE-2021-29945

MEDIUM · CVSS 6.5 EPSS 1.21%

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 6.5. It affects Firefox.

CVE
CVE-2021-29945
Severity
MEDIUM
CVSS
6.5
EPSS
1.21%
Firefox

Original NVD Description

The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. *Note: This issue only affected x86-32 platforms. Other platforms are unaffected.*. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

Related CVEs

Other vulnerabilities affecting the same vendor(s)