CVE-2026-67288

FreeRDP before 3.29.0 Denial of Service via smartcard cache

State: Published
Severity: 8.7 High
Published: Aug 1, 2026
Updated: Aug 3, 2026
Reserved: Jul 29, 2026

Description

FreeRDP before 3.29.0 contains a null pointer dereference vulnerability in smartcard cache request decoders that accept NULL NDR pointers for LookupName in SCARD_IOCTL_READCACHEA and SCARD_IOCTL_WRITECACHEA operations. When smartcard emulation is enabled, attackers can send crafted smartcard cache requests with NULL lookup-name pointers to trigger strlen() on a null pointer, causing client process termination.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	VulnCheck
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	VulnCheck

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
FreeRDPFreeRDP	before 3.29.0Affected 3.29.0Not affected

References

GitHub Security Advisory (GHSA-ph3q-f9w8-7jf3)vendor-advisory
Patch Commitpatch
Patch Commitpatch
VulnCheck Advisory: FreeRDP before 3.29.0 Denial of Service via smartcard cachethird-party-advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5wr6-8m8j-3h7fexploit

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