TrueConf · Client
CVE-2026-3502
TrueConf Client Update Integrity Verification Bypass
What it is
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.
CISA: 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.
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.
Deadline for US federal agencies: April 16, 2026
- Added to the CISA list
- April 2, 2026
- Published
- March 30, 2026
- Severity
- High 7.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 5.8% in the top 6.9% of all known vulnerabilities
- Weakness
- CWE-494
- More details
- NVD · CVE.org · CISA
All references (1)
More exploited flaws from TrueConf
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Aug 20, 2026 | Missing Authentication for Critical Function | Server | Critical 9.3 | 1.5% |
| Aug 20, 2026 | Code Injection | Server | Critical 9.5 | 1.7% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.