TrueConf
CISA orders feds to patch actively exploited TrueConf Server flaws
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) ordered U.S. federal agencies to prioritize patching two actively exploited vulnerabilities in the TrueConf Server self-hosted communications platform. TrueConf Server is designed for secure corporate messaging and video conferencing and, unlike cloud-based software like Zoom or Microsoft Teams, it operates inside an organization’s local network (LAN). The […]
Hackers breach TrueConf to trojanize client installers with backdoors
The Head Mare hacktivist group has been exploiting vulnerabilities in unpatched TrueConf video conferencing servers to replace client installers with malicious versions that deliver backdoors. The exploited vulnerabilities allowed the attacker to execute arbitrary code with the highest level of privileges and deploy the PhantomCore and PhantomGraph backdoors. TrueConf is a video conferencing tool widely used […]
Hackers exploit TrueConf zero-day to push malicious software updates SVE
Hackers have targeted TrueConf conference servers in attacks that exploit a zero-day vulnerability, allowing them to execute arbitrary files on all connected endpoints. The flaw is tracked as CVE-2026-3502 and received a medium severity score. It stems from a missing integrity check in the software’s update mechanism, which can be used to replace the legitimate update with […]