Vulnerability in Freerdp
CVE-2026-121389
FreeRDP from 3.27.0 before 3.32.2 contains a denial of service vulnerability in rdpdr_dump_packet that allows malicious RDP servers to abort clients by sending malformed RDPDR device-list announcements. Attackers can declare a DeviceDataLength exceeding the received packet, triggering a fatal Stream_Seek assertion when device redirection, TRACE logging, and WinPR assertions are enabled.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L.
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-66mr-7wc7-23vc (vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/freerdp-3.27.0-before-3.32.2-client-dos-via-rdpdr-… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-121389?
- CVE-2026-121389 is a low-severity vulnerability in Freerdp, classified under Reachable Assertion. CVSS score: 3.1/10. Published 2026-11-03.
- How severe is CVE-2026-121389?
- Low severity. CVSS v3 base score is 3.1 out of 10.