What is CVE-2026-3502?

CVE-2026-3502 is a high-severity vulnerability in Trueconf, 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.

Vulnerability in Trueconf

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: 0.058 (92.2th 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

Trueconf
Trueconf Client — versions TrueConf Client versions 8.1.0 through 8.5.2

Weakness classification (CWE)

CWE-494 — Download of Code Without Integrity Check

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2026-04-02. 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: 2026-04-16.

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

cve@checkpoint.com (Product, Release Notes)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2026-3502?: CVE-2026-3502 is a high-severity vulnerability in Trueconf, 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.