What is CVE-2026-109243?

CVE-2026-109243 is a medium-severity vulnerability in Freerdp, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 4.4/10. Published 2026-10-12.

How severe is CVE-2026-109243?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Vulnerability in Freerdp

CVE-2026-109243

FreeRDP from 3.0.0 before 3.32.0 contains an incorrect permission assignment vulnerability that allows local users to read private keys written by crypto_write_pem without owner-only permissions. Attackers on multi-user Unix hosts can enumerate the shared temporary directory during soft-smartcard logon to read the world-readable PKINIT private-key copy.

Published 2026-10-12.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N.

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-732 — Incorrect Permission Assignment for Critical Resource

References

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q9p9-j22r-577p (vendor-advisory)
www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-insecure-permissions-o… (third-party-advisory)

Frequently asked questions

What is CVE-2026-109243?: CVE-2026-109243 is a medium-severity vulnerability in Freerdp, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 4.4/10. Published 2026-10-12.
How severe is CVE-2026-109243?: Medium severity. CVSS v3 base score is 4.4 out of 10.