# CVE-2022-26078: Denial of service in Gallagher Controller 6000

> An attacker can cause a denial of service on Gallagher Controller 6000 devices by sending conflicting ARP packets with duplicate IP addresses.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:** 6 Jul 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-4fgq-9h7x-f2cj

## What is CVE-2022-26078?

CVE-2022-26078 is a high-severity denial of service vulnerability in Gallagher Controller 6000, published on 6 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Gallagher Controller 6000 is vulnerable to a Denial of Service attack via conflicting ARP packets with a duplicate IP address. This issue affects: Gallagher Gallagher Controller 6000 vCR8.60 versions prior to 220303a; vCR8.50 versions prior to 220303a; vCR8.40 versions prior to 220303a; vCR8.30 versions prior to 220303a.

Weakness: CWE-754 (Improper Check for Unusual or Exceptional Conditions)

## Which versions are affected by CVE-2022-26078?

It affects 1 product.


Products: Gallagher Controller 6000 Firmware.

## How do I fix CVE-2022-26078?

No fix has been published for CVE-2022-26078 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-26078 being exploited?

There is no known exploitation of CVE-2022-26078 in the wild and no public exploit code.

## Other vulnerabilities in Gallagher Controller 6000

- [CVE-2023-24590](https://insights.sbomify.com/CVE-2023-24590/): Other in Controller 6000 (high 7.5)
- [CVE-2023-24584](https://insights.sbomify.com/CVE-2023-24584/): Controller 6000 buffer overflow via upload feature in web interface (high 7.5)
- [CVE-2023-41967](https://insights.sbomify.com/CVE-2023-41967/): Information disclosure in Controller 6000 (low 2.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-26078 and fix it if it is affected.

What it is: CVE-2022-26078 is a high-severity denial of service vulnerability in Gallagher Controller 6000, published on 6 Jul 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-2022-26078 in the wild and no public exploit code.

Affected product: Gallagher Controller 6000. 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-2022-26078/ (Markdown: https://insights.sbomify.com/CVE-2022-26078/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-26078
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-26078
- OSV: https://osv.dev/vulnerability/CVE-2022-26078

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-26078/
Summaries are generated and may contain mistakes; the official description above is the record.