What is CVE-2026-110834?

CVE-2026-110834 is a medium-severity vulnerability in Freerdp, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2026-10-14.

How severe is CVE-2026-110834?

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

NULL pointer dereference in Freerdp

CVE-2026-110834

FreeRDP from 2.0.0 before 3.32.0 contains a null pointer dereference vulnerability that allows malicious RDP servers to crash clients by sending out-of-lifecycle serial IRPs. Attackers can send IRP_MJ_READ or IRP_MJ_WRITE before create or after close, causing CommReadFile or CommWriteFile to dereference a null handle and terminate clients using Linux serial redirection.

Published 2026-10-14 · last modified 2026-10-15.

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-476 — NULL Pointer Dereference

References

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pw4j-ff39-9vjm (vendor-advisory)
www.vulncheck.com/advisories/freerdp-2.0.0-before-3.32.0-denial-of-service-via-… (third-party-advisory)

Frequently asked questions

What is CVE-2026-110834?: CVE-2026-110834 is a medium-severity vulnerability in Freerdp, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2026-10-14.
How severe is CVE-2026-110834?: Medium severity. CVSS v3 base score is 6.5 out of 10.