CVE-2021-23973

MEDIUM · CVSS 6.5 EPSS 1.37%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-02-26 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE

CVE-2021-23973

Severity

MEDIUM

CVSS

6.5

EPSS

1.37%

Firefox

Original NVD Description

When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.