# CVE-2018-8872: Memory corruption in Triconex Tricon

> Attackers can manipulate memory addresses in Schneider Electric Triconex Tricon MP firmware to copy data anywhere in memory, potentially leading to code execution.

- **Severity:** High 8.1 (`CVSS:3.0/AV:N/AC:H/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:** 4 May 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-ggm5-5h63-2mvr

## What is CVE-2018-8872?

CVE-2018-8872 is a high-severity memory corruption vulnerability in Schneider Electric Triconex Tricon, published on 4 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In Schneider Electric Triconex Tricon MP model 3008 firmware versions 10.0-10.4, system calls read directly from memory addresses within the control program area without any verification. Manipulating this data could allow attacker data to be copied anywhere within memory.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2018-8872?

It affects 1 product.


Products: Schneider-Electric Triconex Tricon Mp 3008 Firmware.

## How do I fix CVE-2018-8872?

No fix has been published for CVE-2018-8872 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-8872 being exploited?

There is no known exploitation of CVE-2018-8872 in the wild and no public exploit code.

## Other vulnerabilities in Schneider Electric Triconex Tricon

- [CVE-2018-7522](https://insights.sbomify.com/CVE-2018-7522/): Memory corruption in Triconex Tricon (medium 6.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-8872 and fix it if it is affected.

What it is: CVE-2018-8872 is a high-severity memory corruption vulnerability in Schneider Electric Triconex Tricon, published on 4 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-2018-8872 in the wild and no public exploit code.

Affected product: Schneider Electric Triconex Tricon. 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-2018-8872/ (Markdown: https://insights.sbomify.com/CVE-2018-8872/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-8872
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-8872
- OSV: https://osv.dev/vulnerability/CVE-2018-8872

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-8872/
Summaries are generated and may contain mistakes; the official description above is the record.