Findings

CVE-2026-3502

TrueConf Client Download of Code Without Integrity Check Vulnerability

Published Mar 30, 2026 · updated Jun 17, 2026 · TrueConf Client

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.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 30, 2026 · Catalog

    Detected

    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.

  2. Apr 2, 2026 · CISA KEV

    Known exploited

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  3. Apr 16, 2026 · CISA KEV

    Remediation due

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  4. Jun 17, 2026 · Catalog

    Updated

    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.

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.

CISA due date Apr 16, 2026

Affected

  • cpe trueconf/trueconfversion unspecified
  • vendor TrueConf Clientversion unspecified

Sources

  • CISA KEVCVE-2026-3502

    TrueConf Client contains a download of code without integrity check vulnerability. 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.gov
  • CVE.orgCVE-2026-3502

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2026-3502

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDCVE-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 arb

    nvd.nist.gov

References

CVE-2026-3502 · ZeroDay Findings