TrueConf Server Flaws Exploited to Replace Client Installers with PhantomCore

The threat actor known as Head Mare has been observed weaponizing security flaws in unpatched TrueConf servers once again in attacks targeting Russian companies spanning instrumentation, electronics, transport, energy, IT, and software development sectors. Russian cybersecurity vendor Kaspersky...

The vulnerability of the TrueConf Server software lies in the lack of authentication for critical functions, allowing attackers to execute arbitrary scripts and increase their privileges.

The vulnerability of the TrueConf Server software is related to the lack of authentication for critical functions. Exploiting this vulnerability allows a malicious actor to execute arbitrary scripts and increase their privileges...

The vulnerability of the TrueConf Server software, related to improper code generation management, allows a perpetrator to execute arbitrary code.

The vulnerability of the TrueConf Server software is related to incorrect code generation management. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

PT-2026-70006

Name of the Vulnerable Software and Affected Versions TrueConf server versions 5.3.0 through 5.3.9 TrueConf server versions 5.4.0 through 5.4.9 TrueConf server versions 5.5.0 through 5.5.5 TrueConf server versions prior to 5.3.0 Description Improper management of code generation allows a remote...

PT-2026-70005

Name of the Vulnerable Software and Affected Versions TrueConf Server versions 5.3.x through 5.3.9 TrueConf Server versions 5.4.x through 5.4.9 TrueConf Server versions 5.5.x through 5.5.5 TrueConf Server versions prior to 5.5.5 Description An issue exists where a remote unauthorized attacker wit...

TrueConf Windows Client < 8.5.3.884 Download of Code Without Integrity Check Vulnerability (CVE-2026-3502)

The version of TrueConf Windows Client installed on the remote host is prior to 8.5.3.884. It is, therefore, affected by a vulnerability: — A remote code execution vulnerability exists in the TrueConf Client update mechanism due to lack of cryptographic verification of update packages. An...

PhantomCore Exploits TrueConf Vulnerabilities to Breach Russian Networks

A pro-Ukrainian hacktivist group called PhantomCore has been attributed to attacks actively targeting servers running TrueConf video conferencing software in Russia since September 2025. That's according to a report published by Positive Technologies, which found the threat actors to be leveragin...

Exploit for Download of Code Without Integrity Check in Trueconf

🔍 CVE-2026-3502 Scanner - TrueConf Vulnerability Detection Too...

Exploit for Download of Code Without Integrity Check in Trueconf

🔓 CVE-2026-3502 - TrueConf Client Update Hijacking Exploit !...

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities KEV Catalog, based on evidence of active exploitation. CVE-2026-3502link is external TrueConf Client Download of Code Without Integrity Check Vulnerability This type of vulnerability is a frequent attack vector for...

TrueConf Client Download of Code Without Integrity Check Vulnerability

TrueConf Client contains a download of code without integrity check vulnerability. An attacker who is able to influence the update delivery path can substitute a tampered update payload. If the payload is executed or installed by the updater, this may result in arbitrary code execution in the...

CVE-2026-3502

TrueConf Client downloads application update code and applies it without performing verification. An attacker who is able to influence the update delivery path can substitute a tampered update payload. If the payload is executed or installed by the updater, this may result in arbitrary code...

VulnCheck KEV: CVE-2026-3502

TrueConf Client downloads application update code and applies it without performing verification. An attacker who is able to influence the update delivery path can substitute a tampered update payload. If the payload is executed or installed by the updater, this may result in arbitrary code...

CVE-2026-3502

TrueConf Client downloads application update code and applies it without performing verification. An attacker who is able to influence the update delivery path can substitute a tampered update payload. If the payload is executed or installed by the updater, this may result in arbitrary code...

CVE-2026-3502 TrueConf Client Update Integrity Verification Bypass

TrueConf Client downloads application update code and applies it without performing verification. An attacker who is able to influence the update delivery path can substitute a tampered update payload. If the payload is executed or installed by the updater, this may result in arbitrary code...

CVE-2026-3502

The CVE-2026-3502 issue affects TrueConf Client where the update payload is downloaded and installed without integrity verification, allowing an attacker who controls the update path to substitute a tampered payload and potentially achieve arbitrary code execution in the updater process or user c...

CVE-2026-3502 TrueConf Client Update Integrity Verification Bypass

TrueConf Client downloads application update code and applies it without performing verification. An attacker who is able to influence the update delivery path can substitute a tampered update payload. If the payload is executed or installed by the updater, this may result in arbitrary code...

CVE-2026-3502

TrueConf Client downloads application update code and applies it without performing verification. An attacker who is able to influence the update delivery path can substitute a tampered update payload. If the payload is executed or installed by the updater, this may result in arbitrary code...

TrueConf Client 安全漏洞

TrueConf Client is a video conferencing and collaboration software client developed by TrueConf Company in Lithuania. There is a security vulnerability in TrueConf Client, which stems from the lack of validation during the download of application update code. This vulnerability could allow...

The vulnerability of the TrueConf Server software method allows a perpetrator to initiate requests on behalf of the server.

The vulnerability of the TrueConf Server software lies in the insufficient protection of service data. Exploiting this vulnerability allows a malicious actor to initiate requests on behalf of the server remotely...