๐Ÿ›ก๏ธ CVE-2026-27947
๐ŸŸ  CVSS 8.8 โ€” High โœ… No Known Exploit CWE-88 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-88
Public Exploit โœ… No
Source NVD
Published 2026-02-27
Updated 2026-06-02
Modified 2026-03-04
Fix URL N/A

Affected Packages

Software From version Fixed in
group-office 26.0.1 26.0.9

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