CVE catalog
CVE-2026-22853
FreeRDP vulnerabilities
- Severity
- High · CVSS 8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.78% · Oct 27, 2026
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, RDPEAR’s NDR array reader does not perform bounds checking on the on‑wire element count and can write past the heap buffer allocated from hints, causing a heap buffer overflow in ndr_read_uint8Array. This vulnerability is fixed in 3.20.1.
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 | vulnerable |
| Ubuntu | freerdp2 | noble | Not reported | vulnerable |
| Ubuntu | freerdp3 | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | freerdp3-dev | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | freerdp3-shadow-x11 | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | freerdp3-wayland | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | freerdp3-x11 | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | libfreerdp-client3-3 | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | libfreerdp-server3-3 | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | libfreerdp-shadow-subsystem3-3 | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | libfreerdp-shadow3-3 | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | libfreerdp3-3 | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | libwinpr-tools3-3 | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | libwinpr3-3 | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | libwinpr3-dev | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | winpr3-utils | noble | 3.5.1+dfsg1-0ubuntu1.4 | fixed |
| Ubuntu | freerdp3 | 25.10 | 3.14.0+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | freerdp3 | 25.10 | 3.15.0+dfsg-2.1 | vulnerable |
| Ubuntu | freerdp3 | 25.10 | 3.16.0+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | freerdp3 | 25.10 | 3.16.0+dfsg-2 | vulnerable |
| Ubuntu | freerdp3 | 25.10 | 3.16.0+dfsg-2ubuntu0.1 | vulnerable |
| Ubuntu | freerdp3 | 25.10 | 3.16.0+dfsg-2ubuntu0.3 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | freerdp2 | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Ubuntu | freerdp3 | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | freerdp3-dev | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | freerdp3-shadow-x11 | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | freerdp3-wayland | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | freerdp3-x11 | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | libfreerdp-client3-3 | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | libfreerdp-server3-3 | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | libfreerdp-shadow-subsystem3-3 | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | libfreerdp-shadow3-3 | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | libfreerdp3-3 | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | libwinpr-tools3-3 | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | libwinpr3-3 | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | libwinpr3-dev | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | winpr3-utils | deb | noble | 3.5.1+dfsg1-0ubuntu1.4 | Not reported | Not reported | Not reported |
| Ubuntu | freerdp3 | deb | 25.10 | 3.16.0+dfsg-2ubuntu0.3 | Not reported | UBUNTU-CVE-2026-22853 | Not reported |
Notes
[bookworm] freerdp2: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [freerdp2-dev]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [freerdp2-shadow-x11]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [freerdp2-wayland]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [freerdp2-x11]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [libfreerdp2-2]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [libfreerdp-client2-2]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [libfreerdp-server2-2]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [libfreerdp-shadow2-2]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [libfreerdp-shadow-subsystem2-2]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [libuwac0-0]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [libuwac0-dev]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [libwinpr2-2]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [libwinpr2-dev]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [libwinpr-tools2-2]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
- [winpr-utils]Affected
Source package: [freerdp2]
Details (2)
2.11.7+dfsg1-6~deb12u1· amd64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
2.11.7+dfsg1-6~deb12u1· arm64 · bookwormAffected
usn · freerdp2 · debian · bookworm; usn · freerdp2 · debian · 12
[Debian 13 (Trixie)]
- [freerdp3-dev]Fixed
Source package: [freerdp3]
Details (4)
3.15.0+dfsg-2.1+deb13u3· amd64 · trixieFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.15.0+dfsg-2.1+deb13u3· arm64 · trixieFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.30.0+dfsg-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.30.0+dfsg-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
- [freerdp3-proxy]Fixed
Source package: [freerdp3]
Details (4)
3.15.0+dfsg-2.1+deb13u3· amd64 · trixieFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.15.0+dfsg-2.1+deb13u3· arm64 · trixieFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.30.0+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.30.0+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
- [freerdp3-proxy-modules]Fixed
Source package: [freerdp3]
Details (4)
3.15.0+dfsg-2.1+deb13u3· amd64 · trixieFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.15.0+dfsg-2.1+deb13u3· arm64 · trixieFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.30.0+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.30.0+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
- [freerdp3-sdl]Fixed
Source package: [freerdp3]
Details (4)
3.15.0+dfsg-2.1+deb13u3· amd64 · trixieFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.15.0+dfsg-2.1+deb13u3· arm64 · trixieFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.30.0+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.30.0+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
- [freerdp3-shadow-x11]Fixed
Source package: [freerdp3]
Details (4)
3.15.0+dfsg-2.1+deb13u3· amd64 · trixieFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.15.0+dfsg-2.1+deb13u3· arm64 · trixieFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.30.0+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
3.30.0+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
3.15.0+dfsg-2.1+deb13u1usn · freerdp3 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10059-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-22853]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-22853]
- [https://security-tracker.debian.org/tracker/CVE-2026-22853]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22853.json]
- [https://ubuntu.com/security/notices/USN-8105-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0111.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]