Skip to content
Fencer Vulns
medium 4.8

CVE-2022-39316 json

Out of bound read in FreeRDP

published 2022-11-16 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-41800

cvss
4.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 64%
public exploits
0
none known

Summary

FreeRDP is a free remote desktop protocol library and clients. In affected versions there is an out of bound read in ZGFX decoder component of FreeRDP. A malicious server can trick a FreeRDP based client to read out of bound data and try to decode it likely resulting in a crash. This issue has been addressed in the 2.9.0 release. Users are advised to upgrade.

Patch / fix

  • freerdp freerdp 2.9.0
  • freerdp2 Debian 12 2.9.0+dfsg1-1

debian advisories DEBIAN-CVE-2022-39316

  • freerdp2 Ubuntu 18.04 LTS 2.2.0+dfsg1-0ubuntu0.18.04.4
  • freerdp2 Ubuntu 20.04 LTS 2.2.0+dfsg1-0ubuntu0.20.04.4
  • freerdp2 Ubuntu 22.04 LTS 2.6.1+dfsg1-3ubuntu2.3

ubuntu advisories UBUNTU-CVE-2022-39316

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • freerdp RHEL 8 2:2.2.0-10.el8
  • libwinpr RHEL 8 2:2.2.0-10.el8
  • freerdp-libs RHEL 8 2:2.2.0-10.el8
  • freerdp RHEL 9 2:2.4.1-5.el9
  • libwinpr RHEL 9 2:2.4.1-5.el9
  • freerdp-libs RHEL 9 2:2.4.1-5.el9

red hat advisories RHSA-2023:2851RHSA-2023:2326

  • freerdp SLE Workstation Extension 12 SP5, SLE Software Development Kit 12 SP5 2.1.2-12.35.1
  • freerdp SLE Workstation Extension 15 SP4, SLE Module for Package Hub 15 SP4, openSUSE Leap 15.4 2.4.0-150400.3.18.1

suse advisories SUSE-SU-2023:0400-1SUSE-SU-2023:0399-1

  • freerdp2 openSUSE Tumbleweed 2.9.0-1.1

opensuse advisories openSUSE-SU-2024:12523-1

  • freerdp AlmaLinux 8 2:2.2.0-10.el8
  • libwinpr AlmaLinux 8 2:2.2.0-10.el8
  • freerdp-libs AlmaLinux 8 2:2.2.0-10.el8
  • freerdp AlmaLinux 9 2:2.4.1-5.el9
  • libwinpr AlmaLinux 9 2:2.4.1-5.el9
  • freerdp-libs AlmaLinux 9 2:2.4.1-5.el9

almalinux advisories ALSA-2023:2851ALSA-2023:2326

  • freerdp Rocky Linux 8 2:2.2.0-10.el8

rocky linux advisories RLSA-2023:2851

  • freerdp Alpine 3.24, Alpine 3.23, Alpine 3.22 +5 more 2.9.0-r0
  • freerdp2 Alpine 3.24, Alpine 3.23, Alpine 3.22 2.9.0-r0

alpine advisories ALPINE-CVE-2022-39316

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-39316 updated cvss 4.8

freerdp: out of bounds read in zgfx decoder

  • Red Hat Enterprise Linux 6 freerdp, freerdp-libs, freerdp-plugins Red Hat Enterprise Linux 7 freerdp, libwinpr, freerdp-libs, freerdp-plugins
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) freerdp 2.2.0-10.el8, libwinpr 2.2.0-10.el8, freerdp-libs 2.2.0-10.el8
    fixed: vendor fix RHSA-2023:2851
  • Red Hat Enterprise Linux AppStream (v. 9) freerdp 2.4.1-5.el9, libwinpr 2.4.1-5.el9, freerdp-libs 2.4.1-5.el9
    fixed: vendor fix RHSA-2023:2326
  • Red Hat Enterprise Linux CRB (v. 8) freerdp-devel 2.2.0-10.el8, freerdp-debuginfo 2.2.0-10.el8, libwinpr-debuginfo 2.2.0-10.el8, freerdp-debugsource 2.2.0-10.el8, freerdp-libs-debuginfo 2.2.0-10.el8
    fixed: vendor fix RHSA-2023:2851
  • Red Hat Enterprise Linux CRB (v. 9) freerdp-devel 2.4.1-5.el9, libwinpr-devel 2.4.1-5.el9, freerdp-debuginfo 2.4.1-5.el9, libwinpr-debuginfo 2.4.1-5.el9, freerdp-debugsource 2.4.1-5.el9, freerdp-libs-debuginfo 2.4.1-5.el9
    fixed: vendor fix RHSA-2023:2326

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.06% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
NVD 3.1 5.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Affected products

  • FreeRDP FreeRDP

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.