TrueConf Client Download of Code Without Integrity Check Vulnerability (CVE-2026-3502)
Severity: high · Patch status: unknown · Since 2026-04-02 · CVE-2026-3502
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 context of the updating process or user. CISA added CVE-2026-3502 to its Known Exploited Vulnerabilities catalog on Apr 2, 2026, which means attackers are exploiting it in the wild.
What to do
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- US federal agencies must remediate by Apr 16, 2026 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
