DEBIAN-CVE-2026-72746

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Source
https://security-tracker.debian.org/tracker/CVE-2026-72746
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-72746.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-72746
Upstream
Withdrawn
2026-08-13T02:00:38Z
Published
2026-08-11T13:19:05Z
Modified
2026-08-13T02:00:38Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

FreeRDP before 3.30.0 contains a server-side authentication bypass in the RDSTLS handshake. When a server is configured with RdstlsSecurity = TRUE, the handshake dispatches inbound PDUs based solely on the attacker-supplied wire pduType without verifying that the received PDU is the one required at the current step. Because the rdpRdstls object is calloc-zeroed, its resultCode defaults to 0 (RDSTLS_RESULT_SUCCESS). An unauthenticated remote client can send a Capabilities PDU instead of the required Authentication Request PDU; rdstls_process_capabilities() returns success without ever setting resultCode, so the server responds with an AUTHRSP carrying resultCode SUCCESS and treats the session as authenticated without evaluating any password, redirection GUID, or auto-reconnect cookie. This affects the released FreeRDP 3.x series (e.g., 3.27.1) and master HEAD; at the time of the advisory no patched version was available.

References

Affected packages

Debian:13 / freerdp3

Package

Name
freerdp3
Purl
pkg:deb/debian/freerdp3?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.15.0+dfsg-2.1
3.15.0+dfsg-2.1+deb13u1
3.15.0+dfsg-2.1+deb13u2
3.15.0+dfsg-2.1+deb13u3
3.16.0+dfsg-1
3.16.0+dfsg-2
3.17.0+dfsg-1
3.17.1+dfsg-1
3.17.1+dfsg-2
3.17.2+dfsg-1
3.17.2+dfsg-2
3.17.2+dfsg-3
3.18.0+dfsg-1
3.19.0+dfsg-1
3.19.1+dfsg-1
3.20.0+dfsg-1
3.20.2+dfsg-1
3.21.0+dfsg-1
3.22.0+dfsg-1~bpo13+0
3.22.0+dfsg-1~bpo13+1
3.22.0+dfsg-1
3.22.0+dfsg-3
3.23.0+dfsg-1~bpo13+1
3.23.0+dfsg-1
3.24.0+dfsg-1
3.24.0+dfsg-2
3.24.1+dfsg-1
3.24.2+dfsg-1~bpo13+1
3.24.2+dfsg-1
3.25.0+dfsg-1
3.25.0+dfsg-2
3.25.0+dfsg-3
3.25.0+dfsg-4
3.25.0+dfsg-5
3.26.0+dfsg-1~bpo13+1
3.26.0+dfsg-1
3.27.0+dfsg-1
3.27.1+dfsg-1
3.28.0+dfsg-1
3.28.0+dfsg-2
3.29.0+dfsg-1
3.30.0+dfsg-1~bpo13+1
3.30.0+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-72746.json"

Debian:14 / freerdp3

Package

Name
freerdp3
Purl
pkg:deb/debian/freerdp3?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.30.0+dfsg-1

Affected versions

3.*
3.15.0+dfsg-2.1
3.16.0+dfsg-1
3.16.0+dfsg-2
3.17.0+dfsg-1
3.17.1+dfsg-1
3.17.1+dfsg-2
3.17.2+dfsg-1
3.17.2+dfsg-2
3.17.2+dfsg-3
3.18.0+dfsg-1
3.19.0+dfsg-1
3.19.1+dfsg-1
3.20.0+dfsg-1
3.20.2+dfsg-1
3.21.0+dfsg-1
3.22.0+dfsg-1~bpo13+0
3.22.0+dfsg-1~bpo13+1
3.22.0+dfsg-1
3.22.0+dfsg-3
3.23.0+dfsg-1~bpo13+1
3.23.0+dfsg-1
3.24.0+dfsg-1
3.24.0+dfsg-2
3.24.1+dfsg-1
3.24.2+dfsg-1~bpo13+1
3.24.2+dfsg-1
3.25.0+dfsg-1
3.25.0+dfsg-2
3.25.0+dfsg-3
3.25.0+dfsg-4
3.25.0+dfsg-5
3.26.0+dfsg-1~bpo13+1
3.26.0+dfsg-1
3.27.0+dfsg-1
3.27.1+dfsg-1
3.28.0+dfsg-1
3.28.0+dfsg-2
3.29.0+dfsg-1
3.30.0+dfsg-1~bpo13+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-72746.json"