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CVE-2026-114043: Vulnerability in FreeRDP

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-21 · updated 2026-10-27
• Weakness: CWE-125

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.

Affected products

• FreeRDP: before 3.32.1 — fixed in 3.32.1

How to fix

Upgrade to a fixed version: FreeRDP 3.32.1. Check the vendor advisory for mitigations.

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

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