How severe is CVE-2026-3502?

CVE-2026-3502 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2026-3502 being actively exploited?

Yes. CVE-2026-3502 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-04-02, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2026-3502?

CVE-2026-3502 affects Trueconf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3502?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2026-3502 have an EU (EUVD) identifier?

Yes. CVE-2026-3502 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17162. It is also flagged as exploited in the EUVD (since 2026-04-02).

When was CVE-2026-3502 published?

CVE-2026-3502 was published on 2026-03-30 and last updated on 2026-06-17.

CVE-2026-3502

CVE-2026-3502 is a high-severity vulnerability in Trueconf with a CVSS 3.x base score of 7.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-04-02). The underlying weakness is classified as CWE-494.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Yes — listed in CISA KEV (added 2026-04-02)
EU (EUVD) id: EUVD-2026-17162
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2026-04-02)
Weakness: CWE-494
Affected product: Trueconf
Published: 2026-03-30
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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 installed by the updater, this may result in arbitrary code execution in the context of the updating process or user.
How severe is CVE-2026-3502?: CVE-2026-3502 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2026-3502 being actively exploited?: Yes. CVE-2026-3502 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-04-02, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2026-3502?: CVE-2026-3502 affects Trueconf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3502?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2026-3502 have an EU (EUVD) identifier?: Yes. CVE-2026-3502 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17162. It is also flagged as exploited in the EUVD (since 2026-04-02).
When was CVE-2026-3502 published?: CVE-2026-3502 was published on 2026-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:trueconf:trueconf:*:*:*:*:*:windows:*:*

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