High 8.3Published Aug 11, 2026

CVE-2026-73241FreeRDP: RDSTLS server authentication bypass: a credential-less Capabilities PDU is accepted at the auth step (fail-open `resultCode`)

Updated under an hour ago (2026-10-19 11:10 UTC)

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It affects FreeRDP. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.30.0, FreeRDP server-side RDSTLS in libfreerdp/core/rdstls.c accepts an attacker-supplied RDSTLS_TYPE_CAPABILITIES PDU while rdstls_server_authenticate is waiting for RDSTLS_TYPE_AUTHREQ, leaving resultCode at RDSTLS_RESULT_SUCCESS and allowing a remote unauthenticated client to bypass the RedirectionGuid, username, domain, or password checks. This issue is fixed in version 3.30.0.

CVSS: 8.3 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-287
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Aug 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

FreeRDP FreeRDP freerdp:freerdp (from the name)	before 3.30.0	CNA record
freerdp freerdp freerdp:freerdp	before 3.30.0	NVD

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-rqgv-grx4-xm6xx-refsource-confirm, exploit, mitigation, vendor-advisory
https://github.com/FreeRDP/FreeRDP/pull/13065x-refsource-misc, issue-tracking, patch
https://github.com/FreeRDP/FreeRDP/commit/b05a9510787c83c87ffc5fa8d7cc9f06ed971695x-refsource-misc, patch
https://github.com/FreeRDP/FreeRDP/releases/tag/3.30.0x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.