CVE-2026-25067

MEDIUM

5.3

Description

SmarterTools SmarterMail versions prior to build 9518 contain an unauthenticated path coercion vulnerability in the background-of-the-day preview endpoint. The application base64-decodes attacker-supplied input and uses it as a filesystem path without validation. On Windows systems, this allows UNC paths to be resolved, causing the SmarterMail service to initiate outbound SMB authentication attempts to attacker-controlled hosts. This can be abused for credential coercion, NTLM relay attacks, and unauthorized network authentication.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie1/29/2026

Derniere modification3/9/2026

Sourcenvd

Observations honeypot0

Produits affectes

smartertools:smartermail

Faiblesses (CWE)

CWE-706

References

https://www.smartertools.com/smartermail/release-notes/current(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/smartertools-smartermail-unauthenticated-background-of-the-day-path-coercion(disclosure@vulncheck.com)

Correlations IOC

Aucune correlation enregistree

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