# CVE-2022-20816: Cisco Unified Communications Manager Arbitrary File Deletion Vulnerability

> Authenticated attackers can delete arbitrary files on Cisco Unified Communications Manager via crafted HTTP requests.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Aug 2022
- **Updated:** 1 Nov 2024
- **Also known as:** GHSA-6pf9-83g8-xqr2

## What is CVE-2022-20816?

CVE-2022-20816 is a medium-severity path traversal vulnerability in Cisco Unified Communications Manager, published on 10 Aug 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to delete arbitrary files from an affected system. This vulnerability exists because the affected software does not properly validate HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected software. A successful exploit could allow the attacker to delete arbitrary files from the affected system.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2022-20816?

It affects 1 product.


Products: Cisco Unified Communications Manager.

## How do I fix CVE-2022-20816?

No fix has been published for CVE-2022-20816 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-20816 being exploited?

There is no known exploitation of CVE-2022-20816 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Unified Communications Manager

- [CVE-2026-20230](https://insights.sbomify.com/CVE-2026-20230/): Cisco Unified Communications Manager Server-Side Request Forgery (SSRF) (high 8.6, exploited in the wild)
- [CVE-2026-20045](https://insights.sbomify.com/CVE-2026-20045/): Cisco Unified Communications Products Code Injection (high 8.2, exploited in the wild)
- [CVE-2025-20309](https://insights.sbomify.com/CVE-2025-20309/): Cisco Unified Communications Manager Static SSH Credentials Vulnerability (critical 10.0)
- [CVE-2011-1643](https://insights.sbomify.com/CVE-2011-1643/): Information disclosure in n/a (critical 10.0)
- [CVE-2024-20253](https://insights.sbomify.com/CVE-2024-20253/): Deserialization in Cisco Packaged Contact Center Enterprise (critical 9.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-20816 and fix it if it is affected.

What it is: CVE-2022-20816 is a medium-severity path traversal vulnerability in Cisco Unified Communications Manager, published on 10 Aug 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-20816 in the wild and no public exploit code.

Affected product: Cisco Unified Communications Manager. 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-2022-20816/ (Markdown: https://insights.sbomify.com/CVE-2022-20816/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-20816
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-20816
- OSV: https://osv.dev/vulnerability/CVE-2022-20816

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-20816/
Summaries are generated and may contain mistakes; the official description above is the record.