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CVE

CVE-2026-25512

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

CVE-2026-25512

Group-Office is vulnerable to RCE due to Command Injection via TNEF Attachment Handler

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 tmpfile into an exec() call. By injecting shell metacharacters into tmpfile, 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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.4
-
4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

http://github.com/Intermesh/groupoffice/commit/6c612deca97a6cd2a1bd4feea0ce7e8e9d907792, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25512.json, https://github.com/Intermesh/groupoffice/security/advisories/GHSA-579w-jvg7-frr4, https://nvd.nist.gov/vuln/detail/CVE-2026-25512

Severity

0

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
0
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
0
Fix Available
2df647666712de52e4178d1feccc06ca84ebb62b

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