TrueConf Client Update Integrity Verification Bypass

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-3502
StatePUBLISHED
Assignercheckpoint
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-30 19:16:27 UTC
Updated2026-04-03 11:40:57 UTC
DescriptionTrueConf 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.024210000 probability, percentile 0.851740000 (date 2026-04-23)

CISA KEV: Listed on 2026-04-02; due 2026-04-16; ransomware use Unknown

Problem Types: CWE-494 | CWE-494 CWE-494: Download of Code Without Integrity Check.

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.8HIGHCVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L
3.1CNACVSS7.8HIGHCVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
Low

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

CISA Known Exploited Vulnerability

VendorTrueConf
ProductClient
NameTrueConf Client Download of Code Without Integrity Check Vulnerability
Required ActionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Noteshttps://trueconf.com/blog/update/trueconf-8-5 ; https://trueconf.com/downloads/windows.html ; https://nvd.nist.gov/vuln/detail/CVE-2026-3502

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Trueconf Trueconf All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA TrueConf TrueConf Client affected TrueConf Client versions 8.1.0 through 8.5.2 Not specified

References

ReferenceSourceLinkTags
trueconf.com/blog/update/trueconf-8-5 [email protected] trueconf.com Product, Release Notes
www.cisa.gov/known-exploited-vulnerabilities-catalog 134c704f-9b21-4f2e-91b3-4a467353bcc0 www.cisa.gov US Government Resource
research.checkpoint.com/2026/operation-truechaos-0-day-exploitation-against-southeast... 134c704f-9b21-4f2e-91b3-4a467353bcc0 research.checkpoint.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Additional Advisory Data

SourceTimeEvent
ADP2026-04-02T00:00:00.000ZCVE-2026-3502 added to CISA KEV
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report