Vulnerability in Trueconf Client

CVE-2026-3502

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 install…

EPSS: 0.028 (86.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

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.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2026-3502?
CVE-2026-3502 is a high-severity vulnerability in Trueconf Client, classified under Download of Code Without Integrity Check. CVSS score: 7.8/10. Published 2026-03-30.
How severe is CVE-2026-3502?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2026-3502 known to be exploited?
Yes. CVE-2026-3502 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-04-02), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.