# CVE-2018-7820: Information disclosure in APC UPS Network Management Card 2 AOS

> Attackers can view remote monitoring credentials in plaintext if the feature is enabled then disabled, exposing sensitive access data.

- **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:** 17 Sep 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-ff72-jpjq-gxxc

## What is CVE-2018-7820?

CVE-2018-7820 is a critical vulnerability in Schneider Electric SE APC UPS Network Management Card 2 AOS, published on 17 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A Credentials Management CWE-255 vulnerability exists in the APC UPS Network Management Card 2 AOS v6.5.6, which could cause Remote Monitoring Credentials to be viewed in plaintext when Remote Monitoring is enabled, and then disabled.

Weakness: CWE-522 (Insufficiently Protected Credentials), CWE-255

## Which versions are affected by CVE-2018-7820?

It affects 4 products.


Products: Schneider-Electric Ap9630 Firmware, Schneider-Electric Ap9631 Firmware, Schneider-Electric Ap9635 Firmware, Schneider-Electric Smart-Ups Srt 5kva Firmware.

## How do I fix CVE-2018-7820?

No fix has been published for CVE-2018-7820 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-7820 being exploited?

There is no known exploitation of CVE-2018-7820 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-7820 and fix it if it is affected.

What it is: CVE-2018-7820 is a critical vulnerability in Schneider Electric SE APC UPS Network Management Card 2 AOS, published on 17 Sep 2019. 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-2018-7820 in the wild and no public exploit code.

Affected product: Schneider Electric SE APC UPS Network Management Card 2 AOS. 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-2018-7820/ (Markdown: https://insights.sbomify.com/CVE-2018-7820/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-7820
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-7820
- OSV: https://osv.dev/vulnerability/CVE-2018-7820

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-7820/
Summaries are generated and may contain mistakes; the official description above is the record.