Vulnerability in FreeRDP

[ Description ]Official description

FreeRDP before 3.32.1 contains a heap-based out-of-bounds read in WinPR's clipboard PNG-to-CF_DIB synthesis because winpr_read_png_from_buffer() allocates a bit-packed buffer for PNGs with bit depth below 8, while winpr_bitmap_write_buffer() copies rows assuming one byte per pixel. A malicious RDP server can send a crafted low-bit-depth PNG clipboard payload that, when pasted by the victim, discloses megabytes of heap memory.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund27 Sep 2026WID-SEC-2026-3603

  FreeRDP: Multiple vulnerabilities Translated from German

  CVE-2026-114042CVE-2026-114041CVE-2026-114043+3 more CVEs

[ References ]References

• github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f3vg-h45x-6wgf
• www.vulncheck.com/advisories/vulnerability-in-freerdp