CVEvulnerability

CVE-2026-3502

7.8 HIGH Known exploited Published 2026-03-30 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

TrueConf Client Download of Code Without Integrity Check Vulnerability — TrueConf Client

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.

Added to KEV
2026-04-02
Remediation due
2026-04-16
Ransomware use
Unknown
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://trueconf.com/blog/update/trueconf-8-5 ; https://trueconf.com/downloads/windows.html ; https://nvd.nist.gov/vuln/detail/CVE-2026-3502
Status
Analyzed
Published
2026-03-30
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L
Weaknesses
CWE-494

Description

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 execution in the context of the updating process or user.

Affected configurations

• trueconf trueconf (< 8.5.3.884)

Related

Weakness · CWE (1)

  • CWE-494 Download of Code Without Integrity Check weakness

References