CVE-2026-72529TrueConf Server Missing Authentication for Critical Function Vulnerability
Aktif olarak istismar ediliyor — TrueConf Server Missing Authentication for Critical Function Vulnerability
CISA bu açığın gerçek saldırılarda kullanıldığını 20.08.2026 tarihinde doğruladı. ABD federal kurumları için düzeltme son tarihi: 23.08.2026.
Gerekli işlem: 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. https://trueconf.com/blog/news/security-fixes-updates-and-advisories ; https://ics-cert.kaspersky.com/advisories/2026/08/11/trueconf-server-missing-authentication-for-critical-function/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-72529
Açıklama
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.
Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.
Etkilenen ürünler ve sürümler
| Üretici | Ürün | Sürümler | |
|---|---|---|---|
| TrueConf | TrueConf Server | < 5.3, 5.3 – < 5.3.9, 5.4 – < 5.4.9, 5.5 – < 5.5.5 |
Kaynaklar ve yamalar
- KLCERT-26-057: TrueConf Server. Missing Authentication for Critical Function third-party-advisoryThird 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-2026-72529 US Government Resource
CPE eşleşmeleri (NVD) (6)
cpe:2.3:a:trueconf:trueconf_server:*:*:*:*:*:windows:*:*< 5.3.9.10013cpe:2.3:a:trueconf:trueconf_server:*:*:*:*:*:linux_kernel:*:*< 5.3.9.10015cpe:2.3:a:trueconf:trueconf_server:*:*:*:*:*:windows:*:*≥ 5.4.0.12689 < 5.4.9.10072cpe:2.3:a:trueconf:trueconf_server:*:*:*:*:*:linux_kernel:*:*≥ 5.4.0.12700 < 5.4.9.10019cpe:2.3:a:trueconf:trueconf_server:*:*:*:*:*:windows:*:*≥ 5.5.0.13826 < 5.5.5.10010cpe:2.3:a:trueconf:trueconf_server:*:*:*:*:*:linux_kernel:*:*≥ 5.5.0.13828 < 5.5.5.10009