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Fencer Vulns
high 7.4

CVE-2022-24883 json

FreeRDP Server authentication might allow invalid credentials to pass

published 2022-04-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-29651

cvss
7.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 2.7.0, server side authentication against a `SAM` file might be successful for invalid credentials if the server has configured an invalid `SAM` file path. FreeRDP based clients are not affected. RDP server implementations using FreeRDP to authenticate against a `SAM` file are affected. Version 2.7.0 contains a fix for this issue. As a workaround, use custom authentication via `HashCallback` and/or ensure the `SAM` database path configured is valid and the application has file handles left.

Patch / fix

  • freerdp freerdp 2.7.0
  • freerdp2 Debian 12 2.7.0+dfsg1-1

debian advisories DEBIAN-CVE-2022-24883

  • freerdp2 Ubuntu 18.04 LTS 2.2.0+dfsg1-0ubuntu0.18.04.3
  • freerdp2 Ubuntu 20.04 LTS 2.2.0+dfsg1-0ubuntu0.20.04.3
  • freerdp2 Ubuntu 22.04 LTS 2.6.1+dfsg1-3ubuntu2.1

ubuntu advisories UBUNTU-CVE-2022-24883

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 SLE Workstation Extension 15 SP4, SLE Module for Package Hub 15 SP4, openSUSE Leap 15.4 2.4.0-150400.3.3.1
  • freerdp SLE Workstation Extension 15 SP3, SLE Module for Package Hub 15 SP3, openSUSE Leap 15.3 2.1.2-150200.15.15.1
  • freerdp SLE Workstation Extension 12 SP5, SLE Software Development Kit 12 SP5 2.1.2-12.23.1

suse advisories SUSE-SU-2022:2354-1SUSE-SU-2022:2353-1SUSE-SU-2022:2352-1

  • freerdp2 openSUSE Tumbleweed 2.11.2-3.1

opensuse advisories openSUSE-SU-2024:13504-1

  • freerdp Arch Linux 2:2.7.0-1

arch linux advisories AVG-2756

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-2022-24883 updated cvss 9.8

freerdp: Server Side Auth Against a SAM File May Succeed for Invalid Creds

  • Red Hat Enterprise Linux 6 freerdp, freerdp-libs, freerdp-plugins Red Hat Enterprise Linux 7 freerdp, libwinpr, freerdp-libs, freerdp-plugins Red Hat Enterprise Linux 8 freerdp, libwinpr, freerdp-libs Red Hat Enterprise Linux 9 freerdp, libwinpr, freerdp-libs
    not affected: vulnerable code not present

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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

2.34% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

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.