# CVE-2022-28721: Code injection in Certain HP inkjet printers, HP LaserJet Pro printers, HP PageWide Pro printers.

> Attackers can execute arbitrary code on vulnerable HP printers, requiring users to apply vendor security patches.

- **Severity:** Critical 9.8 (`CVSS:3.1/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:** No
- **Published:** 26 Sep 2022
- **Updated:** 27 May 2025
- **Also known as:** GHSA-f7xh-9q98-8c6x

## What is CVE-2022-28721?

CVE-2022-28721 is a critical code injection vulnerability in Certain HP inkjet printers, HP LaserJet Pro printers, HP PageWide Pro printers., published on 26 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Certain HP Print Products are potentially vulnerable to Remote Code Execution.

## Which versions are affected by CVE-2022-28721?

It affects 300 products.


Products: Hp 1g5m0a Firmware, Hp 1k7k6a Firmware, Hp 1k7k7a Firmware, Hp 1kr42a Firmware, Hp 1kr45a Firmware, Hp 1kr46a Firmware, Hp 1kr48a Firmware, Hp 1kr49a Firmware, Hp 1kr54a Firmware, Hp 1kr55a Firmware, Hp 1kr57a Firmware, Hp 1kr58a Firmware, Hp 1kr61a Firmware, Hp 1kr62a Firmware, Hp 1kr69a Firmware, Hp 1l0h6a Firmware, Hp 1l0h7a Firmware, Hp 1l0h8a Firmware, Hp 1mr66a Firmware, Hp 1mr67a Firmware and 280 more.

## How do I fix CVE-2022-28721?

No fix has been published for CVE-2022-28721 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-28721 being exploited?

There is no known exploitation of CVE-2022-28721 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-28721 and fix it if it is affected.

What it is: CVE-2022-28721 is a critical code injection vulnerability in Certain HP inkjet printers, HP LaserJet Pro printers, HP PageWide Pro printers., published on 26 Sep 2022. 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-2022-28721 in the wild and no public exploit code.

Affected product: Certain HP inkjet printers, HP LaserJet Pro printers, HP PageWide Pro printers.. 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-2022-28721/ (Markdown: https://insights.sbomify.com/CVE-2022-28721/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-28721
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-28721
- OSV: https://osv.dev/vulnerability/CVE-2022-28721

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-28721/
Summaries are generated and may contain mistakes; the official description above is the record.