CVE-2026-109252

FreeRDP from 3.9.0 before 3.32.0 RDPEAR NULL Pointer Dereference via KERB_RPC_INTERNAL_NAME

State: Published
Severity: 6.0 Medium
Published: Oct 12, 2026
Updated: Oct 15, 2026
Reserved: Oct 12, 2026

Description

FreeRDP from 3.9.0 before 3.32.0 contains a NULL pointer dereference vulnerability in the RDPEAR NDR reader that allows malicious servers to crash clients via truncated KERB_RPC_INTERNAL_NAME data. Attackers can send a CreateApReqAuthenticatorReq with NameCount of two or more ending before the Names pointer, causing cleanup to dereference a null base and terminate the client.

Scores

CVSS	Score	Vector	Source
4.0	6.0 Medium	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	VulnCheck
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H	VulnCheck

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
FreeRDPFreeRDP	3.9.0 to before 3.32.0Affected 3.32.0Not affected

References

GitHub Security Advisory (GHSA-93g7-296p-j77j)vendor-advisory
VulnCheck Advisory: FreeRDP from 3.9.0 before 3.32.0 RDPEAR NULL Pointer Dereference via KERB_RPC_INTERNAL_NAMEthird-party-advisory

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