High 7.8Known exploited (CISA KEV)Published Mar 30, 2026

CVE-2026-3502TrueConf Client Update Integrity Verification Bypass

Updated under an hour ago (2026-10-19 05:50 UTC)

Does this affect you?

It affects TrueConf Client and 1 other product. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Apr 2, 2026; federal agencies had to remediate by Apr 16, 2026. Treat that date as your deadline.

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Every CVE for TrueConf Client

Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L
Weakness (CWE): CWE-494
Known exploited: Added to CISA KEV Apr 2, 2026; federal remediation due Apr 16, 2026Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS (exploitation in the next 30 days): 0.33% (percentile 24)
Assigned by: checkpoint
NVD analysis: Analyzed
Record last updated: Apr 3, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

TrueConf TrueConf Client trueconf:client (from the name)	TrueConf Client versions 8.1.0 through 8.5.2	CNA record
trueconf trueconf trueconf:trueconf	before 8.5.3.884	NVD

References

https://trueconf.com/blog/update/trueconf-8-5product, release-notes
https://research.checkpoint.com/2026/operation-truechaos-0-day-exploitation-against-southeast-asian-government-targets/third-party-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-3502us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.