CVE-2025-2830

MEDIUM

Thunderbird < 128.9.2 and 128.9.2-137.0.2 - Path Traversal and Information Disclosure via Malformed Attachment Filename

Title source: llm
STIX 2.1

Description

By crafting a malformed file name for an attachment in a multipart message, an attacker can trick Thunderbird into including a directory listing of /tmp when the message is forwarded or edited as a new message. This vulnerability could allow attackers to disclose sensitive information from the victim's system. This vulnerability is not limited to Linux; similar behavior has been observed on Windows as well. This vulnerability was fixed in Thunderbird 137.0.2 and Thunderbird 128.9.2.

References (3)

Core 3

Scores

CVSS v3 6.3
EPSS 0.0010
EPSS Percentile 27.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-22
Status published
Products (3)
mozilla/thunderbird < 128.9.2
Mozilla/Thunderbird 128.9.2 - 128.*
Mozilla/Thunderbird 137.0.2
Published Apr 15, 2025
Tracked Since Feb 18, 2026