vulnerability
Oracle Linux: CVE-2025-3877: ELSA-2025-8196: thunderbird security update (IMPORTANT) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:P/I:N/A:P) | May 14, 2025 | May 29, 2025 | Jul 17, 2025 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:P)
Published
May 14, 2025
Added
May 29, 2025
Modified
Jul 17, 2025
Description
The Mozilla Foundation's Security Advisory describes the following issue: 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, such as 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.
Solution
oracle-linux-upgrade-thunderbird
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.