Unrated severityNVD Advisory· Published Mar 13, 2026· Updated Mar 13, 2026
FreeRDP has an out-of-bounds read in `freerdp_bitmap_decompress_planar`
CVE-2026-31897
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, there is an out-of-bounds read in freerdp_bitmap_decompress_planar when SrcSize is 0. The function dereferences *srcp (which points to pSrcData) without first verifying that SrcSize >= 1. When SrcSize is 0 and pSrcData is non-NULL, this reads one byte past the end of the source buffer. This vulnerability is fixed in 3.24.0.
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Affected products
3Patches
Vulnerability mechanics
References
2- github.com/FreeRDP/FreeRDP/commit/cd27c8faca0eeb0d4309cc5837dfdf3c42eba4e7mitrex_refsource_MISC
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-xgv6-r22m-7c9xmitrex_refsource_CONFIRM
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