CVE-2026-55827

highCVSS 7.5covered by 1 sourcefirst seen 2026-07-10

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.1, FreeRDP clients launched with the non-default /cache:codec:rfx option pass desktop stride and height to RemoteFX decoding for Cache Bitmap V3 data while allocating bitmap->data only for the smaller DstWidth and DstHeight in gdi_Bitmap_Decompress, allowing a malicious RDP server to trigger a heap out-of-bounds write with attacker-controlled offset and content. This issue is fixed in version 3.27.1.

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Advisory coverage (1)

highCVE-2026-55827: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.1, FreeRDP clie…nvd · 2026-07-10

External references

NVD record for CVE-2026-55827

CVE.org record

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