NULL pointer dereference in Freerdp
CVE-2026-109679
FreeRDP 3.0.0-beta4 before 3.32.0 contains a NULL pointer dereference in arm_handle_request_ok when an ARM endpoint returns an empty HTTP 200 body. Attackers controlling the configured ARM gateway can return a zero-length body to pass NULL to strnlen and crash the connecting client.
Published .
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
Weakness classification (CWE)
References
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qjwp-c855-hc69 (vendor-advisory)
- www.vulncheck.com/advisories/freerdp-3.0.0-beta4-before-3.32.0-null-pointer-cra… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-109679?
- CVE-2026-109679 is a medium-severity vulnerability in Freerdp, classified under NULL Pointer Dereference. CVSS score: 5.3/10. Published 2026-10-13.
- How severe is CVE-2026-109679?
- Medium severity. CVSS v3 base score is 5.3 out of 10.