# CVE-2022-43400: Auth bypass in Siveillance Video Mobile Server V2022 R2

> Unauthenticated attackers can bypass login restrictions to access the Siveillance Video Mobile Server application without valid credentials.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Oct 2022
- **Updated:** 7 May 2025
- **Also known as:** GHSA-vxr6-pwvm-cf57

## What is CVE-2022-43400?

CVE-2022-43400 is a critical authentication bypass vulnerability in Siemens Siveillance Video Mobile Server V2022 R2, published on 21 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability has been identified in Siveillance Video Mobile Server V2022 R2 (All versions < V22.2a (80)). The mobile server component of affected applications improperly handles the log in for Active Directory accounts that are part of Administrators group. This could allow an unauthenticated remote attacker to access the application without a valid account.

Weakness: CWE-287 (Improper Authentication), CWE-1390 (Weak Authentication)

## Which versions are affected by CVE-2022-43400?

It affects 1 product.


Products: Siemens Siveillance Video Mobile Server.

## How do I fix CVE-2022-43400?

No fix has been published for CVE-2022-43400 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-43400 being exploited?

There is no known exploitation of CVE-2022-43400 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-43400 and fix it if it is affected.

What it is: CVE-2022-43400 is a critical authentication bypass vulnerability in Siemens Siveillance Video Mobile Server V2022 R2, published on 21 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-43400 in the wild and no public exploit code.

Affected product: Siemens Siveillance Video Mobile Server V2022 R2. 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-2022-43400/ (Markdown: https://insights.sbomify.com/CVE-2022-43400/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-43400
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-43400
- OSV: https://osv.dev/vulnerability/CVE-2022-43400

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-43400/
Summaries are generated and may contain mistakes; the official description above is the record.