Vulnerability in Canarymail Canary Mail
CVE-2025-65318
When using the attachment interaction functionality, Canary Mail 5.1.40 and below saves documents to a file system without a Mark-of-the-Web tag, which allows attackers to bypass the built-in file protection mechanisms of both Windows OS and third-party software.
EPSS: 0.005 (39.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Canarymail Canary_mail
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Broken Link)
- cve@mitre.org (Broken Link)
- cve@mitre.org (Exploit)
- cve@mitre.org (Not Applicable)
- cve@mitre.org (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-65318?
- CVE-2025-65318 is a critical-severity vulnerability in Canarymail Canary Mail, classified under Protection Mechanism Failure. CVSS score: 9.1/10. Published 2025-12-16.
- How severe is CVE-2025-65318?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2025-65318 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.