CVE-2026-25134

CRITICAL EPSS 51.9%
Published Feb 2, 20264mo ago · Modified Jun 17, 20261w ago
9.4 CVSS 4.0
Critical
Find Similar
Published Feb 2, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

Group-Office is an enterprise customer relationship management and groupware tool. Prior to 6.8.150, 25.0.82, and 26.0.5, the MaintenanceController exposes an action zipLanguage which takes a lang parameter and passes it directly to a system zip command via exec(). This can be combined with uploading a crafted zip file to achieve remote code execution. This vulnerability is fixed in 6.8.150, 25.0.82, and 26.0.5.

CVSS Details

Base Score
9.4
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
51.9% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-88

Affected Products 3

VendorProductVersionRange
group-officegroup_office* <6.8.150
group-officegroup_office*≥25.0.1  –  <25.0.82
group-officegroup_office*≥26.0.1  –  <26.0.5

References 2

  • github.com https://github.com/Intermesh/groupoffice/commit/d28490a6a29936db7888aa841ab8ade88800540b
    Patch
  • github.com https://github.com/Intermesh/groupoffice/security/advisories/GHSA-v39j-549w-8849
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/Intermesh/groupoffice/commit/d28490a6a29936db7888aa841ab8ade88800540b
    Patch