AUGUST 4, 2026
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Case File

CVE-2022-26387

HIGH · CVSS 7.5 EPSS 0.66%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-12-22 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2022-26387
Severity
HIGH
CVSS
7.5
EPSS
0.66%
Firefox

Original NVD Description

When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.