# CVE-2022-24882: Server side NTLM does not properly check parameters in FreeRDP

> FreeRDP server implementations allow authentication bypass when an empty password is provided during NTLM authentication.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 26 Apr 2022
- **Updated:** 3 Nov 2025
- **Also known as:** DEBIAN-CVE-2022-24882, GHSA-6x5p-gp49-3jhh, UBUNTU-CVE-2022-24882

## What is CVE-2022-24882?

CVE-2022-24882 is a critical authentication bypass vulnerability in Fedoraproject Extra Packages for Enterprise Linux, published on 26 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). In versions prior to 2.7.0, NT LAN Manager (NTLM) authentication does not properly abort when someone provides and empty password value. This issue affects FreeRDP based RDP Server implementations. RDP clients are not affected. The vulnerability is patched in FreeRDP 2.7.0. There are currently no known workarounds.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2022-24882?

It affects 3 products.


Products: Fedoraproject Extra Packages for Enterprise Linux, Fedoraproject Fedora, Freerdp Freerdp.

## How do I fix CVE-2022-24882?

Upgrade to a fixed version.

## Is CVE-2022-24882 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-24882 exists.

## Other vulnerabilities in Fedoraproject Extra Packages for Enterprise Linux

- [CVE-2023-34152](https://insights.sbomify.com/CVE-2023-34152/): Command injection in ImageMagick (critical 9.8)
- [CVE-2022-4170](https://insights.sbomify.com/CVE-2022-4170/): Code injection in rxvt-unicode (critical 9.8)
- [CVE-2022-40315](https://insights.sbomify.com/CVE-2022-40315/): Moodle Minor SQL injection risk in admin user browsing (critical 9.8)
- [CVE-2022-45152](https://insights.sbomify.com/CVE-2022-45152/): Moodle blind Server-Side Request Forgery (SSRF) vulnerability in LTI provider library (critical 9.1)
- [CVE-2022-2158](https://insights.sbomify.com/CVE-2022-2158/): Use after free in Chrome (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-24882 and fix it if it is affected.

What it is: CVE-2022-24882 is a critical authentication bypass vulnerability in Fedoraproject Extra Packages for Enterprise Linux, published on 26 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-24882 exists.

Affected product: Fedoraproject Extra Packages for Enterprise Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-24882/ (Markdown: https://insights.sbomify.com/CVE-2022-24882/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-24882
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-24882
- OSV: https://osv.dev/vulnerability/CVE-2022-24882

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-24882/
Summaries are generated and may contain mistakes; the official description above is the record.