TrueConf Client Download of Code Without Integrity Check Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 02/04/2026. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| trueconf | < 8.5.3.884 | 8.5.3.884 |
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.
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