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.
Metrics
Affected Vendors & Products
References
History
Fri, 10 Jul 2026 21:45:00 +0000
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| First Time appeared |
Freerdp
Freerdp freerdp |
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| Vendors & Products |
Freerdp
Freerdp freerdp |
Fri, 10 Jul 2026 21:30:00 +0000
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| Metrics |
ssvc
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Fri, 10 Jul 2026 20:00:00 +0000
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| Description | 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. | |
| Title | FreeRDP: Heap out-of-bounds write in RemoteFX (RFX) Cache Bitmap V3 decode | |
| Weaknesses | CWE-131 CWE-787 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-10T20:15:41.227Z
Reserved: 2026-06-17T16:29:38.864Z
Link: CVE-2026-55827
Updated: 2026-07-10T20:15:32.787Z
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OpenCVE Enrichment
Updated: 2026-07-10T21:30:04Z