CVE-2026-111881

EUVD-2026-103337
FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte images. A malicious RDP clipboard peer can return a crafted 1-bpp BMP processed by clipboard_synthesize_image_format_to_bmp for CF_DIB/CF_DIBV5, crashing the client or causing an out-of-bounds write.
Wrap or Wraparound
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
7.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 9.43%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
freerdpfreerdp
3.14.1 ≤
𝑥
< 3.32.0
CNA
Debian logo
Debian Releases
Debian Product
Codename
freerdp2
bookworm
vulnerable
freerdp3
forky
3.32.2+dfsg-1
fixed
sid
3.32.2+dfsg-1
fixed
trixie
vulnerable
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-27m7-gwhh-6hhf
https://www.vulncheck.com/advisories/freerdp-3.14.1-before-3.32.0-integer-underflow-in-bmp-writer-via-clipboard
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-27m7-gwhh-6hhf