# CVE-2022-20777: Cisco Enterprise NFV Infrastructure Software Vulnerabilities

> Attackers can escape guest VMs to execute root commands on the host or leak system data in Cisco Enterprise NFV Infrastructure Software.

- **Severity:** Critical 9.9 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **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:** 4 May 2022
- **Updated:** 6 Nov 2024
- **Also known as:** GHSA-w4mh-9fw9-766v

## What is CVE-2022-20777?

CVE-2022-20777 is a critical vulnerability in Cisco Enterprise NFV Infrastructure Software, published on 4 May 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Multiple vulnerabilities in Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an attacker to escape from the guest virtual machine (VM) to the host machine, inject commands that execute at the root level, or leak system data from the host to the VM. For more information about these vulnerabilities, see the Details section of this advisory.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2022-20777?

It affects 1 product.


Products: Cisco Enterprise Nfv Infrastructure Software.

## How do I fix CVE-2022-20777?

No fix has been published for CVE-2022-20777 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-20777 being exploited?

There is no known exploitation of CVE-2022-20777 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Enterprise NFV Infrastructure Software

- [CVE-2022-20779](https://insights.sbomify.com/CVE-2022-20779/): Cisco Enterprise NFV Infrastructure Software Vulnerabilities (critical 9.9)
- [CVE-2022-20780](https://insights.sbomify.com/CVE-2022-20780/): Cisco Enterprise NFV Infrastructure Software Vulnerabilities (critical 9.9)
- [CVE-2021-34746](https://insights.sbomify.com/CVE-2021-34746/): Cisco Enterprise NFV Infrastructure Software Authentication Bypass Vulnerability (critical 9.8)
- [CVE-2020-3470](https://insights.sbomify.com/CVE-2020-3470/): Cisco Integrated Management Controller Multiple Remote Code Execution Vulnerabilities (critical 9.8)
- [CVE-2019-1895](https://insights.sbomify.com/CVE-2019-1895/): Cisco Enterprise NFV Infrastructure Software VNC Authentication Bypass Vulnerability (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-20777 and fix it if it is affected.

What it is: CVE-2022-20777 is a critical vulnerability in Cisco Enterprise NFV Infrastructure Software, published on 4 May 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-2022-20777 in the wild and no public exploit code.

Affected product: Cisco Enterprise NFV Infrastructure Software. 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-2022-20777/ (Markdown: https://insights.sbomify.com/CVE-2022-20777/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-20777
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-20777
- OSV: https://osv.dev/vulnerability/CVE-2022-20777

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-20777/
Summaries are generated and may contain mistakes; the official description above is the record.