CVE-2026-25512
February 04, 2026
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.
Affected Packages
https://github.com/Intermesh/groupoffice.git (GITHUB):
Affected version(s) >=v6.2.85 <v6.8.150Fix Suggestion:
Update to version v6.8.150https://github.com/Intermesh/groupoffice.git (GITHUB):
Affected version(s) >=v25.0.1 <v25.0.82Fix Suggestion:
Update to version v25.0.82https://github.com/Intermesh/groupoffice.git (GITHUB):
Affected version(s) >=v26.0.1 <v26.0.5Fix Suggestion:
Update to version v26.0.5Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
9.9
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
EPSS
Base Score:
22.28
