Division by zero Affecting freerdp/freerdp package, versions [,3.28.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-FREERDPFREERDP-21192653
- published18 Oct 2026
- disclosed19 Aug 2026
- creditUnknown
Introduced: 19 Aug 2026
CVE-2026-63117 (opens in a new tab)How to fix?
Upgrade freerdp/freerdp to version 3.28.0 or higher.
Overview
Affected versions of this package are vulnerable to Division by zero via the rdpsnd_server_select_format function in channels/rdpsnd/server/rdpsnd_main.c when an authenticated RDP client advertises DVI ADPCM with specific parameters, causing the bs calculation to result in zero. An attacker can cause the server-side rdpsnd channel process to terminate by triggering a division by zero error.