AUGUST 4, 2026
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Case File

CVE-2023-6857

MEDIUM · CVSS 5.3 EPSS 0.66%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-12-19 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.3. It affects Windows, Linux, Android and other products.

CVE
CVE-2023-6857
Severity
MEDIUM
CVSS
5.3
EPSS
0.66%
Windows Linux Android Firefox

Original NVD Description

When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary. *This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.* This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

Related CVEs

Other vulnerabilities affecting the same vendor(s)