Vulnerability identifier: #VU103616
Vulnerability risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID:
CWE-ID:
CWE-451
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Mozilla Thunderbird
Client/Desktop applications /
Messaging software
Vendor: Mozilla
Description
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of a sender address if the From field of an email used the invalid group name syntax. A remote attacker can spoof the email content.
Note, the vulnerability is similar to #VU100312 (CVE-2024-49040).
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Mozilla Thunderbird: 102.0 - 102.15.1, 115.0 - 115.18.0, 128.0 - 128.6.0, 130.0 - 134.0
External links
http://www.mozilla.org/en-US/security/advisories/mfsa2025-10/
http://www.mozilla.org/en-US/security/advisories/mfsa2025-11/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.