CVE-2022-24883: fedoraproject fedora Improper Authentication
Vulnerability summary
CVE-2022-24883 is a critical (CVSS 9.8) Improper Authentication vulnerability in fedoraproject fedora. EPSS estimates a 2.34% chance of exploitation in the next 30 days, higher than 83.3% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 8 · Related 5Timeline
- 26-04-2022PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
5 scores · 4 sources · 2 versions- CVE.orgCNA7.4HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
2.34%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
-0.02 pp
From 2.36% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu2 products
- freerdpAll versions (No fix recorded)
- freerdp2< 2.2.0+dfsg1-0ubuntu0.18.04.3 | < 2.2.0+dfsg1-0ubuntu0.20.04.3 | < 2.6.1+dfsg1-3ubuntu2.1
Debian1 product
- freerdp2< 2.7.0+dfsg1-1
Fedoraproject1 product
- fedoraEOL34 | 35 | 36
Freerdp1 product
- freerdp< 2.7.0
4 vendors · 5 products
References
14 links- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory