# CVE-2018-8867: Denial of service in GE PACSystems RX3i CPE305/310 version 9.20 and prior RX3i CPE330 version 9.21 and prior RX3i CPE 400 version 9.30 and prior PACSystems RSTi-EP CPE 100 all versionsPACSystems CPU320/CRU320 RXi all versions

> Remote attackers can cause denial of service on GE PACSystems PLCs by sending specially crafted packets due to improper input validation.

- **Severity:** High 7.5 (`CVSS:3.0/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:** 18 May 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-wfw6-x555-wh4g

## What is CVE-2018-8867?

CVE-2018-8867 is a high-severity denial of service vulnerability in ICS-CERT GE PACSystems RX3i CPE305/310 version 9.20 and prior RX3i CPE330 version 9.21 and prior RX3i CPE 400 version 9.30 and prior PACSystems RSTi-EP CPE 100 all versionsPACSystems CPU320/CRU320 RXi all versions, published on 18 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In GE PACSystems RX3i CPE305/310 version 9.20 and prior, RX3i CPE330 version 9.21 and prior, RX3i CPE 400 version 9.30 and prior, PACSystems RSTi-EP CPE 100 all versions, and PACSystems CPU320/CRU320 RXi all versions, the device does not properly validate input, which could allow a remote attacker to send specially crafted packets causing the device to become unavailable.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2018-8867?

It affects 8 products.


Products: Ge Pacsystems Cpu320 Firmware, Ge Pacsystems Cru320 Firmware, Ge Pacsystems Rsti-Ep Cpe 100 Firmware, Ge Pacsystems Rx3i Cpe305 Firmware, Ge Pacsystems Rx3i Cpe310 Firmware, Ge Pacsystems Rxi Firmware, Ge Rx3i Cpe330 Firmware, Ge Rx3i Cpe 400 Firmware.

## How do I fix CVE-2018-8867?

No fix has been published for CVE-2018-8867 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-8867 being exploited?

There is no known exploitation of CVE-2018-8867 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-8867 and fix it if it is affected.

What it is: CVE-2018-8867 is a high-severity denial of service vulnerability in ICS-CERT GE PACSystems RX3i CPE305/310 version 9.20 and prior RX3i CPE330 version 9.21 and prior RX3i CPE 400 version 9.30 and prior PACSystems RSTi-EP CPE 100 all versionsPACSystems CPU320/CRU320 RXi all versions, published on 18 May 2018. 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-2018-8867 in the wild and no public exploit code.

Affected product: ICS-CERT GE PACSystems RX3i CPE305/310 version 9.20 and prior RX3i CPE330 version 9.21 and prior RX3i CPE 400 version 9.30 and prior PACSystems RSTi-EP CPE 100 all versionsPACSystems CPU320/CRU320 RXi all versions. 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-2018-8867/ (Markdown: https://insights.sbomify.com/CVE-2018-8867/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-8867
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-8867
- OSV: https://osv.dev/vulnerability/CVE-2018-8867

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-8867/
Summaries are generated and may contain mistakes; the official description above is the record.