2234 matches found
CVE-2026-44421 FreeRDP RDPGFX CacheToSurface heap-buffer-overflow via clamped-rectangle validation bypass
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client by sending crafted RDPGFX PDUs. The bug is in gdiCacheToSurface: it validates a destination rectangle that is clamped to UINT16MA...
Linux Distros Unpatched Vulnerability : CVE-2026-40033
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The...
Vulnerability of the gdi_CacheToSurface() function in the RDP client FreeRDP, allowing a hacker to execute arbitrary code and cause service failure
The vulnerability of the gdiCacheToSurface function in the RDP client FreeRDP is related to buffer overflow in dynamic memory. Exploiting this vulnerability allows a remote attacker to execute arbitrary code and cause a service failure by sending specially crafted RDPGFX packets...
SUSE CVE-2026-40033
FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16MAX but performs copy operations using unclamped cache entry...
CVE-2026-40033
FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16MAX but performs copy operations using unclamped cache entry...
DEBIAN-CVE-2026-40033
FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16MAX but performs copy operations using unclamped cache entry...
CVE-2026-40033
FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16MAX but performs copy operations using unclamped cache entry...
CVE-2026-40033
FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16MAX but performs copy operations using unclamped cache entry...
EUVD-2026-31830
FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16MAX but performs copy operations using unclamped cache entry...
CVE-2026-40033 FreeRDP - Heap-buffer-overflow in gdi_CacheToSurface via rectangle validation bypass
FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16MAX but performs copy operations using unclamped cache entry...
CVE-2026-40033 FreeRDP - Heap-buffer-overflow in gdi_CacheToSurface via rectangle validation bypass
FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16MAX but performs copy operations using unclamped cache entry...
CVE-2026-40033
FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16MAX but performs copy operations using unclamped cache entry...
CVE-2026-40033
FreeRDP before 3.26.0 is affected by a heap-buffer-overflow in gdi_CacheToSurface. The issue stems from rectangle validation clamping coordinates to UINT16_MAX while copy operations use unclamped cache entry dimensions, enabling a malicious RDP server to trigger large out-of-bounds writes and pot...
CVE-2026-40033 FreeRDP - Heap-buffer-overflow in gdi_CacheToSurface via rectangle validation bypass
FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdiCacheToSurface that allows remote attackers to write out-of-bounds heap memory. The vulnerability occurs because rectangle validation clamps coordinates to UINT16MAX but performs copy operations using unclamped cache entry...
FreeRDP 安全漏洞
FreeRDP is an open-source implementation of the Remote Desktop Protocol RDP by the FreeRDP team. Versions of FreeRDP prior to 3.26.0 contained security vulnerabilities. These vulnerabilities stemmed from a heap buffer overflow in the gdiCacheToSurface function, which could allow remote attackers ...
ANT-2026-RXYVE4DZ · freerdp · Heap-buffer-overflow
heap-buffer-overflow critical CVE-2026-40033 CVE-2026-44421 GHSA-mpxh-8fq3-x8mh GHSA-mvpx-xj7r-3p3r GHSA-p6r2-4hgm-m6ff Severity Claude critical · Security research firm critical revised; sealed as high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at...
Astra Linux – Vulnerability in freerdp2
FreeRDP is a free implementation of the Remote Desktop Protocol. Clients that use the /bpp:32 legacy GDI drawing path with a version of FreeRDP prior to 3.5.0 or 2.11.6 are vulnerable to out-of-bounds read vulnerabilities. Versions 3.5.0 and 2.11.6 address this issue. As a workaround, use modern...
Astra Linux – Vulnerability in freerdp2
FreeRDP is a free implementation of the Remote Desktop Protocol RDP, released under the Apache license. In affected versions, a malicious server may trigger out-of-bound writes in a connected client. Connections that use GDI or SurfaceCommands to send graphics updates to the client may send...
May 2026 Patch Tuesday: no zero-days but plenty to fix
This month’s Patch Tuesday remedies 137 security vulnerabilities, including 31 marked critical by Microsoft, with no zero-days actively exploited in the wild. Microsoft defines a zero-day as “a flaw in software for which no official patch or security update is available yet.” This month, Microsof...