CVE-2026-121389
FreeRDP 3.27.0 before 3.32.2 Client DoS via RDPDR Device Announcement Logging
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| FreeRDP FreeRDP |
≥ 3.27.0; < 3.32.2 (affected, semver) 3.32.2 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 2.3 low |
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 3.1 low |
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L | CNA: VulnCheck |
Exploit evidence
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-66mr-7wc7-23vc
exploit · ADP: CISA-ADP
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-66mr-7wc7-23vcCNA: VulnCheck · vendor-advisory
- https://www.vulncheck.com/advisories/freerdp-3.27.0-before-3.32.2-client-dos-via-rdpdr-device-announcement-loggingCNA: VulnCheck · third-party-advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-66mr-7wc7-23vcADP: CISA-ADP · exploit
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