CVE catalog
CVE-2026-67305
FreeRDP Windows client before 3.29.0 contains a heap buffer overflow vulnerability in the clipboard virtual channel when processing CLIPRDR_FILE_CONTENTS_RESPONSE PDUs without validating the server-pr
- Severity
- Critical · CVSS 9.4
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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 - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.77% · Oct 25, 2026
FreeRDP Windows client before 3.29.0 contains a heap buffer overflow vulnerability in the clipboard virtual channel when processing CLIPRDR_FILE_CONTENTS_RESPONSE PDUs without validating the server-provided size against the destination buffer. A malicious RDP server can send a response with a data payload significantly larger than requested, causing arbitrary heap memory corruption that may enable remote code execution when a user performs a paste operation.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | freerdp2 | bookworm | 2.11.7+dfsg1-6~deb12u1 | not affected |
| Cpe | freerdp | Not reported | 3.29.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | freerdp2 | source | bookworm | Not affected | unimportant | Not reported | Not reported |
| Cpe | freerdp | cpe | Not reported | 3.29.0 | Not reported | NVD-CVE-2026-67305 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [freerdp2-dev]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [freerdp2-shadow-x11]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [freerdp2-wayland]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [freerdp2-x11]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [libfreerdp2-2]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [libfreerdp-client2-2]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [libfreerdp-server2-2]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [libfreerdp-shadow2-2]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [libfreerdp-shadow-subsystem2-2]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [libuwac0-0]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [libuwac0-dev]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [libwinpr2-2]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [libwinpr2-dev]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [libwinpr-tools2-2]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
- [winpr-utils]Not affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormNot affected
nvd · freerdp2 · debian · bookworm
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-67305]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-67305]
- [https://security-tracker.debian.org/tracker/CVE-2026-67305]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-67305.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2384.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]