VulnerabilityAnalyzed

CVE-2026-23948

FreeRDP is a free implementation of the Remote Desktop Protocol.

MEDIUM 6.9EPSS 0.48%

Does this matter?

Lower severity and a low EPSS score (0.48%). Track it; it rarely justifies an emergency change on its own.

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, a NULL pointer dereference vulnerability in rdp_write_logon_info_v2() allows a malicious RDP server to crash FreeRDP proxy by sending a specially crafted LogonInfoV2 PDU with cbDomain=0 or cbUserName=0. This vulnerability is fixed in 3.22.0.

CVSS 4.0: 6.9 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.48% probability · 40th percentile
CISA KEV: Not listed
Weakness: CWE-476
Affected: freerdp/freerdp
Source: security-advisories@github.com

References

https://github.com/FreeRDP/FreeRDP/commit/4d44e3c097656a8b9ec696353647b0888ca45860Patch
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6f3c-qvqq-2px5Patch, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.