AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2020-26960

HIGH · CVSS 8.8 EPSS 1.54% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-12-09 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. It affects Firefox. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-26960
Severity
HIGH
CVSS
8.8
EPSS
1.54%
Firefox

Original NVD Description

If the Compact() method was called on an nsTArray, the array could have been reallocated without updating other pointers, leading to a potential use-after-free and exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

Related CVEs

Other vulnerabilities affecting the same vendor(s)