DEBIAN-CVE-2026-67300

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Source
https://security-tracker.debian.org/tracker/CVE-2026-67300
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-67300.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-67300
Upstream
Published
2026-08-01T13:16:59Z
Modified
2026-09-14T17:03:49Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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 3.29.0 contains client-side heap use-after-free vulnerabilities in the async update message proxy for RAIL WINDOW_STATE_ORDER and NOTIFY_ICON_STATE_ORDER when AsyncUpdate is enabled. When a malicious or compromised RDP server sends crafted update orders, the message proxy shallow-copies structures containing nested parser-owned pointers (e.g., titleInfo.string, windowRects, visibilityRects, icon buffers). The parser frees those nested buffers after the callback returns, so the queued async message later dispatches stale pointers, potentially causing memory corruption or a client crash.

References

Affected packages

Debian:12 / freerdp2

Package

Name
freerdp2
Purl
pkg:deb/debian/freerdp2?arch=source&distro=bookworm

Affected ranges

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

Affected versions

2.*
2.10.0+dfsg1-1
2.10.0+dfsg1-1.1
2.11.2+dfsg1-1
2.11.2+dfsg1-1.1~exp1
2.11.2+dfsg1-1.1~exp2
2.11.5+dfsg1-1
2.11.7+dfsg1-1
2.11.7+dfsg1-2
2.11.7+dfsg1-3
2.11.7+dfsg1-4
2.11.7+dfsg1-5
2.11.7+dfsg1-6~deb12u1
2.11.7+dfsg1-6

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-67300.json"

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
3.31.0+dfsg-1
3.31.1+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-67300.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
3.29.0+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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-67300.json"