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FreeRDP before 3.31.0 contains a null pointer dereference vulnerability in gdi_surface_bits when processing Surface Bits commands with NSCodec codec ID. A malicious RDP server can crash a FreeRDP client by sending a crafted Surface Bits command claiming to use NSCodec, even when the codec is disabled.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade freerdp-develUpgrade freerdpUpgrade libwinpr-develUpgrade libwinprUpgrade freerdp-libs | Oct 11, 2026 | Oct 6, 2026 |
| Oracle_linux | — | Upgrade freerdpUpgrade libwinpr-develUpgrade freerdp-serverUpgrade freerdp-develUpgrade libwinprUpgrade freerdp-libs | Oct 22, 2026 | Sep 15, 2026 |
| Redhat_linux | — | Upgrade libwinprUpgrade libwinpr-debuginfoUpgrade freerdp-server-debuginfoUpgrade freerdp-serverUpgrade freerdp-libsUpgrade freerdp-debuginfoNo solution existsUpgrade freerdp-libs-debuginfoUpgrade libwinpr-develUpgrade freerdpUpgrade freerdp-develUpgrade freerdp-debugsource | Sep 17, 2026 | Sep 15, 2026 |
| Rocky_linux | — | Upgrade libwinpr-debuginfoUpgrade freerdp-serverUpgrade libwinprUpgrade freerdp-debuginfoUpgrade freerdp-libs-debuginfoUpgrade freerdp-libsUpgrade freerdp-server-debuginfoUpgrade freerdp-develUpgrade freerdpUpgrade freerdp-debugsourceUpgrade libwinpr-devel | Oct 8, 2026 | Oct 7, 2026 |
| Ubuntu | — | Upgrade freerdp3 | Sep 22, 2026 | Sep 16, 2026 |
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