CVE-2026-72529
criticalKEV · exploitedEPSS 0.015 · 73 %ileRUUSadded 2026-08-20remediate by 2026-08-23
required action Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
EPSS · scored 2026-10-18
TrueConf Server Missing Authentication for Critical Function Vulnerability
A remote unauthorized attacker with network access via port 4307/TCP to the TrueConf server versions 5.3.X to 5.3.9, 5.4.X to 5.4.9, 5.5.X to 5.5.5, and earlier could execute an arbitrary script by calling an undocumented function.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
- trueconf trueconf server5.4.0.12689 → 5.4.9.10072nvdUScpe:2.3:a:trueconf:trueconf_server:*:*:*:*:*:*:*:*
- trueconf trueconf server5.4.0.12700 → 5.4.9.10019nvdUScpe:2.3:a:trueconf:trueconf_server:*:*:*:*:*:*:*:*
- trueconf trueconf server5.5.0.13826 → 5.5.5.10010nvdUScpe:2.3:a:trueconf:trueconf_server:*:*:*:*:*:*:*:*
- trueconf trueconf server5.5.0.13828 → 5.5.5.10009nvdUScpe:2.3:a:trueconf:trueconf_server:*:*:*:*:*:*:*:*
also known as (2)
Other names and identifiers for this entity.
- BDU:2026-11246fstec_bdu
- KLCERT-26-057fstec_bdu
sources
Which sources assert this record, and when.
references (3) nvd
External citations — patches, advisories, analysis.
- https://ics-cert.kaspersky.com/advisories/2026/08/11/trueconf-server-missing-authentication-for-critical-function/Third Party Advisory
- https://securelist.com/tr/head-mare-targets-trueconf-server-with-phantomcore/120988/ExploitThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-72529US Government Resource
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