Description
An attacker who gains the ability to execute arbitrary code on a system with TrueConf Server (Linux) versions from 4.7.2 up to, but not including, 5.5.6 installed, running as the user trueconf (by exploiting some other vulnerability), can elevate their privileges to root.
Published: 2026-11-11
Score: 8.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

Vendor Solution

Update TrueConf Server (Linux) to versions 5.5.6 or newer.

Vendor Workaround

Perform a full check with anti-virus software that has up-to-date anti-virus databases and software modules.

Tracking

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Advisories

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History

Wed, 11 Nov 2026 22:45:00 +0000

Type Values Removed Values Added
Title Privilege Escalation via Incorrect File Permissions in TrueConf Server (Linux)

Wed, 11 Nov 2026 14:15:00 +0000

Type Values Removed Values Added
Description An attacker who gains the ability to execute arbitrary code on a system with TrueConf Server (Linux) versions from 4.7.2 up to, but not including, 5.5.6 installed, running as the user trueconf (by exploiting some other vulnerability), can elevate their privileges to root.
Weaknesses CWE-276
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Kaspersky

Published:

Updated: 2026-11-11T14:15:36.255Z

Reserved: 2026-11-05T07:33:05.167Z

Link: CVE-2026-123040

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-11T14:17:32.280

Modified: 2026-11-11T15:17:18.060

Link: CVE-2026-123040

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-11T22:30:18Z

Weaknesses
  • CWE-276

    Incorrect Default Permissions