CVE-2025-0510 Address of e-mail sender can be spoofed by malicious email
Attackers can spoof sender addresses in Thunderbird by exploiting invalid group name syntax, misleading users about email origin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-0510?
CVE-2025-0510 is a medium-severity vulnerability in Mozilla Thunderbird, published on 4 Feb 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-345
Which versions are affected by CVE-2025-0510?
It affects 1 product.
Products include Mozilla Thunderbird.
How do I fix CVE-2025-0510?
Upgrade to a fixed version.
Is CVE-2025-0510 being exploited?
There is no known exploitation of CVE-2025-0510 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Thunderbird
Sources
Also known as DEBIAN-CVE-2025-0510, GHSA-9h64-69xj-vx28, UBUNTU-CVE-2025-0510.