What is CVE-2026-109252?

CVE-2026-109252 is a medium-severity vulnerability in Freerdp, classified under NULL Pointer Dereference. CVSS score: 5.3/10. Published 2026-10-12.

How severe is CVE-2026-109252?

Medium severity. CVSS v3 base score is 5.3 out of 10.

NULL pointer dereference in Freerdp

CVE-2026-109252

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.

Published 2026-10-12.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Freerdp

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-93g7-296p-j77j (vendor-advisory)
www.vulncheck.com/advisories/freerdp-from-3.9.0-before-3.32.0-rdpear-null-point… (third-party-advisory)

Frequently asked questions

What is CVE-2026-109252?: CVE-2026-109252 is a medium-severity vulnerability in Freerdp, classified under NULL Pointer Dereference. CVSS score: 5.3/10. Published 2026-10-12.
How severe is CVE-2026-109252?: Medium severity. CVSS v3 base score is 5.3 out of 10.