CVE-2026-121950

MediumCVSS 6.5/10Last modified Nov 5, 2026

Description

FreeRDP before 3.32.2 does not check the product of surface dimensions in gdi_CreateSurface when handling an RDPGFX CREATE_SURFACE PDU, causing an integer wrap and heap buffer overflow on 32-bit builds and an approximately 4 GiB allocation on 64-bit builds. A malicious RDP server can send a CREATE_SURFACE PDU with width and height 32766 to a connecting client to corrupt heap memory or cause a denial of service.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-122

Affected software

Vendor	Product	Versions
FreeRDP	FreeRDP	< 3.32.2

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f53w-3364-jr35Exploit, Mitigation, Vendor Advisory
https://www.vulncheck.com/advisories/freerdp-before-3.32.2-heap-overflow-via-rdpgfx-create-surface-integer-wrapThird Party Advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f53w-3364-jr35Exploit, Mitigation, Vendor Advisory

Timeline

Published: Nov 4, 2026
Last modified: Nov 5, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-1219517.5FreeRDP 3.0.0 before 3.32.2 server-side RDP peer input parsing skips the six-byte body of a slow-path input event with an unknown message ty CVE-2026-1219529.8FreeRDP before 3.32.2 has an out-of-bounds write in the proxy because rdp_read_bitmap_cache_v2_capability_set rejects only numCellCaches val CVE-2026-1219539.8FreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId ove CVE-2026-1219546.5FreeRDP before 3.32.2 has a heap out-of-bounds write in the planar codec because freerdp_bitmap_planar_context_reset commits new dimensions CVE-2026-1219556.5FreeRDP before 3.32.2 contains a use-after-free vulnerability in Emulate_SCardReleaseContext that frees the emulated SCardContext before its CVE-2026-1219567.5FreeRDP before 3.32.2 contains a double free in the WinPR Kerberos SSPI retrieveSomeTgt function, which installs the krb5 default realm into CVE-2026-1219577.0FreeRDP before 3.32.2 contains a use-after-free vulnerability that allows malicious RDP servers to corrupt client memory by racing the RDPGF CVE-2026-1219587.5FreeRDP through 3.32.1 has a heap out-of-bounds write in the RDPGFX client because the delete_surface callback truncates surface hash keys t CVE-2026-1219596.5FreeRDP before 3.32.2 contains an infinite loop vulnerability in websocket_context_read that fails to handle a zero BIO result with payload CVE-2026-121968.3HestiaCP panel cronjob feature is affected by a broken access control vulnerability. Low privilege users can modify the panel cronjob to exe CVE-2026-1219607.5FreeRDP before 3.32.2 contains a denial of service vulnerability in the NLA-enabled shadow server when a CredSSP TSRequest omits negoTokens.CVE-2026-1219615.9FreeRDP before 3.32.2 contains a use-after-free vulnerability in the freerdp-proxy DRDYNVC tracker when intercepting the drdynvc channel. A