TrueConf Zero-Day Exploited in Attacks on Southeast Asian Government Networks

The Hacker News

March 31, 2026 at 4:03 PM

Actively Exploited

Overview

A significant security vulnerability in TrueConf, a video conferencing software, has been actively exploited in attacks on government networks in Southeast Asia. This vulnerability, identified as CVE-2026-3502, has a CVSS score of 7.8, indicating its severity. The flaw stems from a lack of integrity checks when updating the application, which allows attackers to deliver malicious updates to users. The campaign, named TrueChaos, is specifically targeting government entities, making it a serious concern given the sensitive nature of the information handled by these organizations. Immediate action is necessary to protect affected systems from further exploitation.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: TrueConf video conferencing software
Action Required: Users should immediately update their TrueConf software to the latest version that addresses this vulnerability and implement strict controls over application updates to prevent unauthorized modifications.
Timeline: Newly disclosed

Original Article Summary

A high-severity security flaw in the TrueConf client video conferencing software has been exploited in the wild as a zero-day as part of a campaign targeting government entities in Southeast Asia dubbed TrueChaos. The vulnerability in question is CVE-2026-3502 (CVSS score: 7.8), a lack of integrity check when fetching application update code, allowing an attacker to distribute a tampered update,

Impact

TrueConf video conferencing software

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Users should immediately update their TrueConf software to the latest version that addresses this vulnerability and implement strict controls over application updates to prevent unauthorized modifications.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to CVE, Zero-day, Vulnerability, and 1 more.

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