# CVE-2018-1000833: Deserialization in n/a

> Attackers can exploit unsafe deserialization in ZoneMinder to achieve remote code execution, data disclosure, or denial of service.

- **Severity:** Critical 9.8 (`CVSS:3.0/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:** Yes
- **Published:** 20 Dec 2018
- **Updated:** 16 Sep 2024
- **Also known as:** DEBIAN-CVE-2018-1000833, GHSA-gf3j-qpxp-849p, UBUNTU-CVE-2018-1000833

## What is CVE-2018-1000833?

CVE-2018-1000833 is a critical unsafe deserialization vulnerability in Zoneminder Zoneminder, published on 20 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

ZoneMinder version <= 1.32.2 contains a Other/Unknown vulnerability in User-controlled parameter that can result in Disclosure of confidential data, denial of service, SSRF, remote code execution.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2018-1000833?

It affects 1 product.


Products: Zoneminder Zoneminder.

## How do I fix CVE-2018-1000833?

Upgrade to a fixed version.

## Is CVE-2018-1000833 being exploited?

There is no known exploitation of CVE-2018-1000833 in the wild and no public exploit code.

## Other vulnerabilities in Zoneminder Zoneminder

- [CVE-2008-3882](https://insights.sbomify.com/CVE-2008-3882/): Command injection in n/a (critical 10.0)
- [CVE-2025-65791](https://insights.sbomify.com/CVE-2025-65791/): Command injection in n/a (critical 9.8)
- [CVE-2024-43360](https://insights.sbomify.com/CVE-2024-43360/): ZoneMinder Time-based SQL Injection (critical 9.8)
- [CVE-2022-29806](https://insights.sbomify.com/CVE-2022-29806/): Path traversal in n/a (critical 9.8)
- [CVE-2019-8423](https://insights.sbomify.com/CVE-2019-8423/): SQL injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-1000833 and fix it if it is affected.

What it is: CVE-2018-1000833 is a critical unsafe deserialization vulnerability in Zoneminder Zoneminder, published on 20 Dec 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-2018-1000833 in the wild and no public exploit code.

Affected product: Zoneminder Zoneminder. 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-2018-1000833/ (Markdown: https://insights.sbomify.com/CVE-2018-1000833/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-1000833
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-1000833
- OSV: https://osv.dev/vulnerability/CVE-2018-1000833

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-1000833/
Summaries are generated and may contain mistakes; the official description above is the record.