# CVE-2020-6864: Information disclosure in E8820V3

> Attackers can leak wireless passwords from ZTE E8820V3 routers, enabling unauthorized network access and further attacks.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Feb 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-g273-hx3q-rm8g

## What is CVE-2020-6864?

CVE-2020-6864 is a medium-severity vulnerability in ZTE Corporation E8820V3, published on 27 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

ZTE E8820V3 router product is impacted by an information leak vulnerability. Attackers could use this vulnerability to to gain wireless passwords. After obtaining the wireless password, the attacker could collect information and attack the router.

## Which versions are affected by CVE-2020-6864?

It affects 1 product.


Products: Zte E8820v3 Firmware.

## How do I fix CVE-2020-6864?

No fix has been published for CVE-2020-6864 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-6864 being exploited?

There is no known exploitation of CVE-2020-6864 in the wild and no public exploit code.

Public exploit code:

- checks if zte ips are vunverable to cve-2020-6864 (github_poc): https://github.com/gigachadusers/cve-2020-6864

## Other vulnerabilities in ZTE Corporation E8820V3

- [CVE-2020-6863](https://insights.sbomify.com/CVE-2020-6863/): Missing authorization in E8820V3 (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-6864 and fix it if it is affected.

What it is: CVE-2020-6864 is a medium-severity vulnerability in ZTE Corporation E8820V3, published on 27 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-6864 in the wild and no public exploit code.

Affected product: ZTE Corporation E8820V3. 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-2020-6864/ (Markdown: https://insights.sbomify.com/CVE-2020-6864/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-6864
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-6864
- OSV: https://osv.dev/vulnerability/CVE-2020-6864

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-6864/
Summaries are generated and may contain mistakes; the official description above is the record.