The following table lists the changes that have been made to the
CVE-2025-3877 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.
May. 14, 2025
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Description | A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user’s desktop or home directory without prompting, even if auto-saving is disabled. This behavior can be abused to fill the disk with garbage data (e.g. using /dev/urandom on Linux) or to leak Windows credentials via SMB links when the email is viewed in HTML mode. While user interaction is required to download the .pdf file, visual obfuscation can conceal the download trigger. Viewing the email in HTML mode is enough to load external content. This vulnerability affects Thunderbird < 128.10.1 and Thunderbird < 138.0.1. | |
| Added | Reference | https://bugzilla.mozilla.org/show_bug.cgi?id=1958580 | |
| Added | Reference | https://www.mozilla.org/security/advisories/mfsa2025-34/ | |
| Added | Reference | https://www.mozilla.org/security/advisories/mfsa2025-35/ |
CVE ID : CVE-2025-10304 Published : Dec. 3, 2025, 3:27 a.m. | 26 minutes ago Description : The Everest Backup –
CVE ID : CVE-2025-12585 Published : Dec. 3, 2025, 3:27 a.m. | 26 minutes ago Description : The MxChat – AI
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