CVE-2025-65318

EUVD-2025-203807
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA-ADPADP
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 28%
Affected Products (NVD)
VendorProductVersion
canarymailcanary_mail
𝑥
≤ 5.1.40
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
http://canary.com
http://canarymail.com
https://drive.google.com/file/d/14wrTzvcLPfFsWmy-SAtDwwZKKPssBsx5/view
https://github.com/bbaboha/CVE-2025-65318-and-CVE-2025-65319
https://github.com/nickvourd/RTI-Toolkit
https://github.com/bbaboha/CVE-2025-65318-and-CVE-2025-65319