CVE-2026-123040
Quick assessment
Affected
TrueConf TrueConf Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
若攻击者能够通过在已安装 TrueConf Server（Linux）版本 4.7.2 至 5.5.6（不含 5.5.6）的系统上利用其他漏洞执行任意代码，且该服务以 用户身份运行，则攻击者可将其权限提升至 root。
Possible ATT&CK Techniques 2 AI
T1548.001 · Setuid and Setgid T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2026-123040
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| TrueConf | TrueConf Server | 4.7.2 ~ 5.5.6 | - |
|
II. Public POCs for CVE-2026-123040
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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