Risk Letters

Exploited vulnerability

CVE-2026-3502

TLP:CLEAR

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 context of the updating process or user.

Facts

  • Vendor: TrueConf
  • Product: Client
  • CVSS: 7.8
  • EPSS (probability of exploitation within 30 days): 5.8 %
  • On CISA's Known Exploited Vulnerabilities list since: 2 April 2026
  • First known exploitation: 2 April 2026
  • CISA's deadline for US federal agencies: 16 April 2026
  • Weakness: CWE-494
  • First seen by Risk Letters: 30 March 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD