TrueConf Client Download of Code Without Integrity Check
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.
CISA deadline 2026-04-16 · passed 4 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
TrueConf Client. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-494.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 4 months ago
Sources
- NVD entry for CVE-2026-3502 nvd.nist.gov/vuln/detail/CVE-2026-3502
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- trueconf.com trueconf.com/blog/update/trueconf-8-5
- trueconf.com trueconf.com/downloads/windows.html
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2026-3502