Incorrect Calculation of Buffer Size Affecting freerdp/freerdp package, versions [,3.24.0)
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-15602505
- published15 Mar 2026
- disclosed13 Mar 2026
- creditwooseokdotkim
Introduced: 13 Mar 2026
NewCVE-2026-31806 (opens in a new tab)How to fix?
Upgrade freerdp/freerdp to version 3.24.0 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Calculation of Buffer Size in the gdi_surface_bits function when processing SURFACE_BITS_COMMAND messages. An attacker can execute arbitrary code by sending crafted image dimensions from a malicious server, causing a heap buffer overflow during bitmap decoding and memory operations. This is only exploitable if a susceptible system connects to a malicious server.