CVE-2025-3932 describes a vulnerability in Mozilla Thunderbird versions prior to 128.10.1 and 138.0.1, where a specially crafted email could display a tracking link as an attachment. If a user attempted to open this attachment, Thunderbird would automatically access the embedded web page, bypassing remote content blocking configurations. This medium-severity vulnerability (CVSS 6.5) has a network attack vector and low attack complexity, requiring user interaction (UI:R) to trigger, potentially leading to high confidentiality impact (C:H) by revealing user information through tracking. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit or Nuclei, or entries in ExploitDB. The vulnerability has received minimal community discussion and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 128.10.1CPE matchmatch criteria | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* | ||
>= 129.0, < 138.0.1CPE matchmatch criteria | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.