CVE-2026-27947

HIGH

8.8

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 CVE

Score CVSS v3.18.8

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie2/27/2026

Derniere modification3/4/2026

Sourcenvd

Observations honeypot0

Produits affectes

intermesh:group-office

Faiblesses (CWE)

CWE-88CWE-434

References

https://github.com/Intermesh/groupoffice/security/advisories/GHSA-2rwh-9qp7-f92x(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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