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CVE-2026-3502

TrueConf Client Update Integrity Verification Bypass

Published: Mar 30, 2026Updated: Apr 3, 2026 Sources: CVE List NVD BDUCWE-494

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.

CVSS Vector Breakdown

AV:AAC:LPR:HUI:RS:CC:HI:HA:L
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:LAvailability
Low

Weaknesses

Affected Products

ооо «труконф»commercialCommunicationsaka trueconf server, trueconf client

Attack Graph

Products CVE Techniques Tactics

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Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Apr 2, 2026
Remediation due:Apr 16, 2026

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.

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

and 2 more references View all →

Timeline

Published
Mar 30, 2026
Added to CISA KEV
Apr 2, 2026
Last Updated
Apr 3, 2026

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