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    CVE-2026-25512

    Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.150, 25.0.82, and 26.0.5, there is a remote code execution (RCE) vulnerability in Group-Office. The endpoint email/message/tnefAttachmentFromTempFile directly concatenates the user-controlled parameter tmp_file into an exec() call. By injecting shell metacharacters into tmp_file, an authenticated attacker can execute arbitrary system commands on the server. This issue has been patched in versions 6.8.150, 25.0.82, and 26.0.5.

    Published:Feb 4, 2026
    Last Modified:Apr 17, 2026
    EPS:Feb 4, 2026
    EPSS Score:0.23168
    CVSS Score:8.8

    Affected Products

    Vendor
    Group-office
    Product
    Group Office
    Vendor
    Intermesh
    Product
    Group-office

    Exploits

    https://github.com/Intermesh/groupoffice/security/advisories/GHSA-579w-jvg7-frr4https://github.com/Intermesh/groupoffice/security/advisories/GHSA-579w-jvg7-frr4https://github.com/mbanyamer/CVE-2026-25512-PoC-Group-Office-Authenticated-RCEhttps://github.com/NumberOreo1/CVE-2026-25512

    Related CVEs

    CVE-2026-25511 (CVSS 8.2) — Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.150, …
    CVE-2026-25134 (CVSS 9.4) — Group-Office is an enterprise customer relationship management and groupware tool. Prior to 6.8.150, 25.0.82, …
    CVE-2026-23887 (CVSS 5.1) — Group-Office is an enterprise customer relationship management and groupware tool. In versions 6.8.148 and bel…
    CVE-2025-63406 (CVSS 8.8) — An issue in Intermesh BV GroupOffice vulnerable before v.25.0.47 and 6.8.136 allows a remote attacker to execu…
    CVE-2025-53505 (CVSS 5.3) — Group-Office versions prior to 6.8.119 and prior to 25.0.20 provided by Intermesh BV contain a path traversal …
    CVE-2025-53504 (CVSS 4.8) — Group-Office versions prior to 6.8.119 and prior to 25.0.20 provided by Intermesh BV contain a cross-site scri…
    CVE-2025-25191 (CVSS 6.9) — Group-Office is an enterprise CRM and groupware tool. This Stored XSS vulnerability exists where user input in…
    CVE-2024-23941 (CVSS 5.4) — Cross-site scripting vulnerability exists in Group Office prior to v6.6.182, prior to v6.7.64 and prior to v6.…
    CVE-2024-22418 (CVSS 6.5) — Group-Office is an enterprise CRM and groupware tool. Affected versions are subject to a vulnerability which i…
    CVE-2023-46730 (CVSS 7.4) — Group-Office is an enterprise CRM and groupware tool. In affected versions there is full Server-Side Request F…

    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