CVE-2025-13015 — Authentication Bypass by Spoofing in Mozilla Firefox

CWE-290 — Authentication Bypass by Spoofing10 documents8 sources
Severity
3.4LOWNVD
EPSS
0.0%
top 91.86%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla ThunderbirdMozilla Firefox
Timeline
PublishedNov 11
Latest updateFeb 2

Description

Spoofing issue in Firefox. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, and Firefox ESR 115.30.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:NExploitability: 1.6 | Impact: 1.4

Affected Packages2 packages

▶NVDmozilla/firefox140.0 — 140.5.0+2
▶Debianmozilla/thunderbird< 1:140.5.0esr-1~deb11u1+3

🔴Vulnerability Details

3
CVEList
Spoofing issue in Firefox↗2025-11-11
▶
GHSA
GHSA-p2g2-wp3h-q672: Spoofing issue in Firefox↗2025-11-11
▶
OSV
CVE-2025-13015: Spoofing issue in Firefox↗2025-11-11
▶

📋Vendor Advisories

6
Ubuntu
Thunderbird vulnerabilities↗2026-02-02
▶
Red Hat
firefox: thunderbird: Spoofing issue in Firefox↗2025-11-11
▶
Debian
CVE-2025-13015: firefox - Spoofing issue in Firefox. This vulnerability affects Firefox < 145, Firefox ESR...↗2025
▶
Mozilla
Mozilla Foundation Security Advisory 2025-88: CVE-2025-13015↗
▶
Mozilla
Mozilla Foundation Security Advisory 2025-87: CVE-2025-13015↗
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CVE-2025-13015 — Authentication Bypass by Spoofing | cvebase