CVE-2026-25134Disclosure(group-office / group_office)

LOWCVSS 8.8 · HIGH

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Patch group-office group_office systems immediately
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD 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.

group-office CVEs Back to dashboard

2.0/ 10 priority

Sources & remediation

Patch / fix

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

Exploit / PoC references

https://github.com/Intermesh/groupoffice/security/advisories/GHSA-v39j-549w-8849

Weakness type (CWE)

CWE-88

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

group_office

Threat summary

Public PoC is present in monitored signal
Patch or workaround signal is available
6 mentions across 4 observed days
Momentum state: stable

What's happening

PoC mentioned or linked in 1 signal
Patch or workaround mentioned in 1 signal
Technical details provided in 5 signals
Disclosure: 5 classified signals
General: 1 classified signal
Peaked 3d ago at 2 mentions (2026-02-02); latest day: 1
6 total mentions across 4 days

Affected systems

Vendors

group-office

Products

group_office

Deep dive

Activity timeline6 mentions / 4d

Signal classification2 categories

Disclosure

583.3%

General

116.7%

Referenced assets4 URLs

By indicator

Classification over time

Date	Total	Labels

2026-02-02	2	Disclosure2
2026-02-03	2	Disclosure2
2026-02-04	1	Disclosure1
2026-03-02	1	General1

Full discourse6 posts

CCB Alert@CCBalert247d
Disclosure
Warning: Critical RCE in #Intermesh #Group-Office #CRM (CVE-2026-25134, CVSS 9.4). Attackers can abuse the zipLanguage action with a crafted ZIP to achieve remote code execution. More info: https://github.com/Intermesh/groupoffice/security/advisories/GHSA-v39j-549w-8849 #RCE! #Patch #Patch #Patch
Post summary
The post announces a critical RCE vulnerability (CVE-2026-25134) in Intermesh Group-Office CRM, describing the exploit vector via a crafted ZIP file, but provides no evidence of active exploitation or patch details.
01010277
7.2K followersView on X
David@DavidMarquet19220d
General
📌 Top CVEs recientes (CVSS>=7.0): 1. 🛡️ CVE-2026-25221 (CVSS: 8.1) 2. ⚠️ CVE-2026-25134 (CVSS: 8.8) 3. ⚠️ CVE-2026-23515 (CVSS: 9.9) 4. 🕷️ CVE-2025-13096 (CVSS: 7.1) 5. ⚠️ CVE-2026-22229 (CVSS: 7.2) #CyberSecurity #CVE #Infosec
Post summary
A brief list of recent high‑CVSS CVEs with no additional context or actionable information.
0000076
167 followersView on X
Autumn Good@autumn_good_35246d
Disclosure
⚠️⚠️⚠️ 『an authenticated attacker (with basic user privileges) can execute arbitrary commands on the server.』 CVE-2026-25134 Remote Code Execution (RCE) · Advisory · Intermesh/groupoffice · GitHub https://github.com/Intermesh/groupoffice/security/advisories/GHSA-v39j-549w-8849
Post summary
The advisory announces CVE‑2026‑25134, a Remote Code Execution flaw in Intermesh GroupOffice that allows an authenticated basic user to run arbitrary commands on the server; no PoC, exploit code, or patch details are provided.
00000465
6.7K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds248d
Disclosure
CVE-2026-25134 Remote Code Execution in Group-Office via Unsanitized Language Parameter Handling https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-25134
Post summary
The post announces CVE-2026-25134, highlighting a remote code execution vulnerability in Group-Office caused by unsanitized language parameter handling.
0000067
4.0K followersView on X
CVE@CVEnew248d
Disclosure
CVE-2026-25134 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 … https://www.cve.org/CVERecord?id=CVE-2026-25134
Post summary
The text announces CVE‑2026‑25134, describing a vulnerable action in Group‑Office's MaintenanceController and indicating that versions 6.8.150, 25.0.82, and 26.0.5 contain the patch.
00000126
56.5K followersView on X
0day Signal@0dayPublishing248d
Disclosure
🚨 CVE-2026-25134: Group-Office Argument Injection ... Classic command injection in exec() via unfiltered 'lang' parameter leads to full RCE - just upload a crafted zip and g... https://zerodaysignal.com/vulnerability/CVE-2026-25134 #netsec #vulnerability #CVE #sysadmin #zeroday
Post summary
The post announces CVE‑2026‑25134, describing a classic command injection in Group‑Office’s exec() function via the unfiltered ‘lang’ parameter that allows full RCE through a crafted zip file, with no patches or active exploitation reported but providing technical details of the flaw.
0000063
132 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	group-office	group_office	-	-	-

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What researchers are saying

CVE-2026-25134

CCB Alert@CCBalertDisclosure

The post announces a critical RCE vulnerability (CVE-2026-25134) in Intermesh Group-Office CRM, describing the exploit vector via a crafted ZIP file, but provides no evidence of active exploitation or patch details.

David@DavidMarquet19General

A brief list of recent high‑CVSS CVEs with no additional context or actionable information.

Autumn Good@autumn_good_35Disclosure

The advisory announces CVE‑2026‑25134, a Remote Code Execution flaw in Intermesh GroupOffice that allows an authenticated basic user to run arbitrary commands on the server; no PoC, exploit code, or patch details are provided.

Vulmon Vulnerability Feed@VulmonFeedsDisclosure

The post announces CVE-2026-25134, highlighting a remote code execution vulnerability in Group-Office caused by unsanitized language parameter handling.

CVE@CVEnewDisclosure

The text announces CVE‑2026‑25134, describing a vulnerable action in Group‑Office's MaintenanceController and indicating that versions 6.8.150, 25.0.82, and 26.0.5 contain the patch.

0day Signal@0dayPublishingDisclosure

The post announces CVE‑2026‑25134, describing a classic command injection in Group‑Office’s exec() function via the unfiltered ‘lang’ parameter that allows full RCE through a crafted zip file, with no patches or active exploitation reported but providing technical details of the flaw.