CVE-2026-25512 – Group-Office is vulnerable to RCE due to Command Injection via TNEF Attachment Handler

CVE ID : CVE-2026-25512

Published : Feb. 4, 2026, 8:39 p.m. | 39 minutes ago

Description : 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.

Severity: 0.0 | NA

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