Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f3vg-h45x-6wgf
- https://www.vulncheck.com/advisories/vulnerability-in-freerdp
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f3vg-h45x-6wgf
FAQ
What is CVE-2026-114043?
CVE-2026-114043 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 b...
How severe is CVE-2026-114043?
CVE-2026-114043 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-114043?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.