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    CVE-2025-52691

    Successful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution.

    Published:Dec 29, 2025
    Last Modified:Feb 26, 2026
    EPS:Dec 29, 2025
    EPSS Score:0.78375
    CVSS Score:10

    CISA Notification

    Description

    Successful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution.

    Required Action:

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    Feb 16, 2026
    207 days ago
    Alert Date
    Jan 26, 2026
    228 days ago

    Affected Products

    Vendor
    Smartertools
    Product
    Smartermail

    Exploits

    https://github.com/watchtowrlabs/watchTowr-vs-SmarterMail-CVE-2025-52691?ref=labs.watchtowr.comhttps://github.com/DeathShotXD/CVE-2025-52691-APT-PoChttps://github.com/hilwa24/CVE-2025-52691https://github.com/mohammadzarnian1357/Ashwesker-CVE-2025-52691https://github.com/ninjazan420/CVE-2025-52691-PoC-SmarterMail-authentication-bypass-exploit-WT-2026-0001https://github.com/nxgn-kd01/smartermail-cve-scannerhttps://github.com/rimbadirgantara/CVE-2025-52691-pochttps://github.com/rxerium/CVE-2025-52691https://github.com/Udyz/CVE-2025-52691https://github.com/watchtowrlabs/watchTowr-vs-SmarterMail-CVE-2025-52691https://github.com/you-ssef9/CVE-2025-52691https://github.com/yt2w/CVE-2025-52691

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High