# CVE-2020-36873: Astak CM-818T3 Unauthenticated Configuration Disclosure

> Unauthenticated remote attackers can download configuration backups from Astak cameras, exposing administrative credentials and sensitive settings.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Nov 2025
- **Updated:** 28 Jul 2026
- **Also known as:** GHSA-4jfm-v5m9-v6gx

## What is CVE-2020-36873?

CVE-2020-36873 is a high-severity vulnerability in Astak CM-818T3 2.4GHz Wireless Security Surveillance Camera, published on 26 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Astak CM-818T3 2.4GHz wireless security surveillance cameras contain an unauthenticated configuration disclosure vulnerability in the /web/cgi-bin/hi3510/backup.cgi endpoint. The endpoint permits remote download of a compressed configuration backup without requiring authentication or authorization. The exposed backup may include administrative credentials and other sensitive device settings, enabling an unauthenticated remote attacker to obtain information that could facilitate further compromise of the camera or connected network.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2020-36873?


## How do I fix CVE-2020-36873?

No fix has been published for CVE-2020-36873 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-36873 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36873 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-36873 and fix it if it is affected.

What it is: CVE-2020-36873 is a high-severity vulnerability in Astak CM-818T3 2.4GHz Wireless Security Surveillance Camera, published on 26 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36873 exists.

Affected product: Astak CM-818T3 2.4GHz Wireless Security Surveillance Camera. 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-2020-36873/ (Markdown: https://insights.sbomify.com/CVE-2020-36873/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-36873
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-36873
- OSV: https://osv.dev/vulnerability/CVE-2020-36873

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-36873/
Summaries are generated and may contain mistakes; the official description above is the record.