Description

Group-Office is an enterprise customer relationship management and groupware tool. Versions prior to 26.0.9, 25.0.87, and 6.8.154 have an authenticated Remote Code Execution vulnerability in the TNEF attachment processing flow. The vulnerable path extracts attacker-controlled files from `winmail.dat` and then invokes `zip` with a shell wildcard (`*`). Because extracted filenames are attacker-controlled, they can be interpreted as `zip` options and lead to arbitrary command execution. Versions 26.0.9, 25.0.87, and 6.8.154 fix the issue.

INFO

Published Date :

2026-02-27T19:52:41.592Z

Last Modified :

2026-03-03T20:24:32.730Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-27947 vulnerability.

Vendors Products
Intermesh
  • Group-office
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-27947.

URL Resource
https://github.com/Intermesh/groupoffice/security/advisories/GHSA-2rwh-9qp7-f92x cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact