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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade freerdp | Jul 13, 2026 | Jul 10, 2026 |
| Amazon_linux_2023 | — | Upgrade freerdp-libsUpgrade freerdp-serverUpgrade freerdp-debugsourceUpgrade libwinpr-develUpgrade freerdp-libs-debuginfoUpgrade freerdp-server-debuginfoUpgrade libwinprUpgrade libwinpr-debuginfoUpgrade freerdpUpgrade freerdp-debuginfoUpgrade freerdp-devel | Aug 10, 2026 | Jul 10, 2026 |
| Oracle_linux | — | Upgrade freerdp-serverUpgrade freerdp-develUpgrade libwinprUpgrade freerdp-libsUpgrade freerdpUpgrade libwinpr-devel | Oct 22, 2026 | Jul 10, 2026 |
| Redhat_linux | — | Upgrade freerdp-debuginfoUpgrade freerdp-serverUpgrade libwinpr-debuginfoNo solution existsUpgrade freerdp-libs-debuginfoUpgrade freerdp-develUpgrade freerdpUpgrade libwinprUpgrade freerdp-server-debuginfoUpgrade freerdp-debugsourceUpgrade freerdp-libsUpgrade libwinpr-devel | Jul 17, 2026 | Jul 10, 2026 |
| Rocky_linux | — | Upgrade freerdp-develUpgrade freerdp-libs-debuginfoUpgrade freerdp-serverUpgrade libwinprUpgrade freerdp-libsUpgrade freerdp-debuginfoUpgrade libwinpr-debuginfoUpgrade freerdp-server-debuginfoUpgrade freerdp-debugsourceUpgrade libwinpr-develUpgrade freerdp | Aug 7, 2026 | Aug 6, 2026 |
| Ubuntu | — | Upgrade freerdp-x11Upgrade freerdp3-x11Upgrade libfreerdp3-3 | Jul 21, 2026 | Jul 20, 2026 |
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