Vulnerability in Mozilla Thunderbird
CVE-2025-0510
Thunderbird displayed an incorrect sender address if the From field of an email used the invalid group name syntax that is described in CVE-2024-49040. This vulnerability was fixed in Thunderbird 128.7 and Thunderbird 135.
EPSS: 0.002 (14.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
Affected products
- Mozilla Thunderbird — versions 128.7, 135
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@mozilla.org (Permissions Required)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-0510?
- CVE-2025-0510 is a medium-severity vulnerability in Mozilla Thunderbird, classified under Insufficient Verification of Data Authenticity. CVSS score: 6.5/10. Published 2025-02-04.
- How severe is CVE-2025-0510?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2025-0510 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.