CVE-2026-3502
HIGH CISA KEVCVSS v3
7.8
HIGH
EPSS Score
—
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
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.
CISA Known Exploited Vulnerability
- Date Added
- 4/2/2026
- Patch Due Date
- 4/16/2026
- 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.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 3/30/2026
- Last Modified
- 4/3/2026
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.
Is CVE-2026-3502 actively exploited?
Yes. CVE-2026-3502 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 4/16/2026.
What is the CVSS score for CVE-2026-3502?
CVE-2026-3502 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string 3.1.
Is CVE-2026-3502 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.