Firefox Spoofing Vulnerability (145, ESR140.5/115.30)
CVE-2025-13015 Published on November 11, 2025
Spoofing issue in Firefox
Spoofing issue in Firefox. This vulnerability affects Firefox < 145, Firefox ESR < 140.5, Firefox ESR < 115.30, Thunderbird < 145, and Thunderbird < 140.5.
Vulnerability Analysis
CVE-2025-13015 can be exploited with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
Authentication Bypass by Spoofing
This attack-focused weakness is caused by improperly implemented authentication schemes that are subject to spoofing attacks.
Products Associated with CVE-2025-13015
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Affected Versions
Mozilla Firefox:- Version unspecified and below 145 is affected.
- Version unspecified and below 140.5 is affected.
- Version unspecified and below 115.30 is affected.
- Version unspecified and below 145 is affected.
- Version unspecified and below 140.5 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.