CVE-2026-55191

creationtimestamp| type| source ---|---|--- 2026-08-19 23:20:04+00:00| seen| https://bsky.app/profile/stackflag.bsky.social/post/3mthumehjgp2t 2026-08-20 00:19:32+00:00| seen| https://bsky.app/profile/termsofsurrender.bsky.social/post/3mthxwp2rbi2h...

CVE-2026-55191

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, FreeRDP clients that negotiate RDPGFX AVC444 with an H.264 decoder backend calculate the intermediate YUV444 allocation size in libfreerdp/codec/h264.c with 32-bit multiplication in avc444ensurebuffer. A malicious R...

Amazon Linux 2023 : freerdp, freerdp-devel, freerdp-libs (ALAS2023-2026-2012)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2012 advisory. Heap-buffer-overflow write in AVC444 YUV buffer allocation In libfreerdp/codec/h264.c, avc444ensurebuffer computes the AVC444 YUV444 intermediate buffer size as piDstSizex = piDstStridex...

Linux Distros Unpatched Vulnerability : CVE-2026-55191

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Debian Linux - freerdp2 - None freerdp3 - None Ubuntu Linux - Heap-buffer-overflow write in AVC444 YUV buffer allocation CVE-2026-55191 Note that Nessus relies ...