CVE-2026-25512
moderate-risk
Published 2026-02-04
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.
Do I need to act?
!
23.2% chance of exploitation in next 30 days
EPSS score — higher than 77% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10
High
NETWORK
/ LOW complexity
Affected Products (1)
Group Office
Affected Vendors
49
/ 100
moderate-risk
Severity
30/34 · Critical
Exploitability
14/34 · Moderate
Exposure
5/34 · Minimal