Is CVE-2026-3502 in the CISA KEV catalog?

Yes. CVE-2026-3502 is on the CISA Known Exploited Vulnerabilities list, added 2026-04-02.

What is the CVSS severity of CVE-2026-3502?

CVE-2026-3502 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2026-3502?

CVE-2026-3502 has an EPSS score of 5.75% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-3502?

Upgrade trueconf to 8.5.3.884 or later.

CVE & CISA-KEV Catalog

CVE-2026-3502

HIGHCISA KEVEPSS 92th pctl

7.8

CVSS v3

NVD

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.

CWE-494

How to fix

Remediation Available

trueconfNVD

Affected:< 8.5.3.884Fixed in:8.5.3.884CVE-2026-3502derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredHigh

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityLow

CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L

Exploit Intelligence

5.75%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Remediation due: 2026-04-16

References

Third-Party Advisory1

research.checkpoint.com

Government Resource1

cisa.gov

Release Notes1

trueconf.com

Related Vulnerabilities

Other CWE-494 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-5398	High	7.5	88%	-	Fix
CVE-2022-40799	High	8.8	31%	KEV	-
CVE-2018-19234	High	8.8	3.3%	-	Fix
CVE-2016-6567	Critical	9.8	2.9%	-	-
CVE-2016-6564	High	8.1	2.7%	-	-
CVE-2001-1125	Critical	9.8	2.5%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-03.