# CVE-2022-44751: HCL Notes is susceptible to a stack based buffer overflow vulnerability in lasr.dll in Micro Focus KeyView

> Remote attackers can execute arbitrary code or crash HCL Notes via a crafted Lotus Ami Pro file exploiting a stack buffer overflow in KeyView.

- **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:** 17 Dec 2022
- **Updated:** 17 Apr 2025
- **Also known as:** GHSA-f4jm-h9rm-vw6q

## What is CVE-2022-44751?

CVE-2022-44751 is a critical memory corruption vulnerability in HCL Software Notes, published on 17 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

HCL Notes is susceptible to a stack based buffer overflow vulnerability in lasr.dll in Micro Focus KeyView.  This could allow a remote unauthenticated attacker to crash the application or execute arbitrary code via a crafted Lotus Ami Pro file. This is different from the vulnerability described in CVE-2022-44755.  This vulnerability applies to software previously licensed by IBM.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2022-44751?

It affects 1 product.


Products: Hcltech Notes.

## How do I fix CVE-2022-44751?

No fix has been published for CVE-2022-44751 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-44751 being exploited?

There is no known exploitation of CVE-2022-44751 in the wild and no public exploit code.

## Other vulnerabilities in HCL Software Notes

- [CVE-2022-44753](https://insights.sbomify.com/CVE-2022-44753/): HCL Notes is susceptible to a stack based buffer overflow vulnerability in wp6sr.dll in Micro Focus KeyView (critical 9.8)
- [CVE-2022-44755](https://insights.sbomify.com/CVE-2022-44755/): HCL Notes is susceptible to a stack based buffer overflow vulnerability in lasr.dll in Micro Focus KeyView (critical 9.8)
- [CVE-2020-14224](https://insights.sbomify.com/CVE-2020-14224/): Memory corruption in HCL Notes (critical 9.8)
- [CVE-2020-14268](https://insights.sbomify.com/CVE-2020-14268/): Memory corruption in HCL Notes (critical 9.8)
- [CVE-2020-14232](https://insights.sbomify.com/CVE-2020-14232/): Memory corruption in HCL Notes (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-44751 and fix it if it is affected.

What it is: CVE-2022-44751 is a critical memory corruption vulnerability in HCL Software Notes, published on 17 Dec 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-2022-44751 in the wild and no public exploit code.

Affected product: HCL Software Notes. 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-2022-44751/ (Markdown: https://insights.sbomify.com/CVE-2022-44751/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-44751
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-44751
- OSV: https://osv.dev/vulnerability/CVE-2022-44751

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-44751/
Summaries are generated and may contain mistakes; the official description above is the record.