Debian/thunderbird: high 8.1
Thunderbird's handling of the X-Mozilla-External-Attachment-URL header can be exploited to execute JavaScript in the file:/// context. By crafting a nested email attachment (message/rfc822) and settin
Action: Upgrade thunderbird to 1:128.10.1esr-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:128.10.1esr-1 | - |
Fixed versions
| 1:128.10.1esr-1 |
Sources
- osv: DEBIAN-CVE-2025-3909#Debian:13/thunderbird
- https://security-tracker.debian.org/tracker/CVE-2025-3909
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