What is CVE-2026-109678?

CVE-2026-109678 is a medium-severity vulnerability in Freerdp, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-10-13.

How severe is CVE-2026-109678?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Freerdp

CVE-2026-109678

FreeRDP 3.0.0-beta1 before 3.32.0, when built with verbose WinPR assertions and using smartcard emulation, has a reachable assertion: the emulated SCardStatusA passes a NULL reader-name destination to scard_copy_strings. A malicious RDP server can send an SCardStatusA request with fmszReaderNamesIsNULL=1 to abort a connecting client.

Published 2026-10-13.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/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-617 — Reachable Assertion

References

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-996j-34w6-5hgm (vendor-advisory)
www.vulncheck.com/advisories/freerdp-3.0.0-beta1-before-3.32.0-reachable-assert… (third-party-advisory)

Frequently asked questions

What is CVE-2026-109678?: CVE-2026-109678 is a medium-severity vulnerability in Freerdp, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-10-13.
How severe is CVE-2026-109678?: Medium severity. CVSS v3 base score is 6.5 out of 10.