# CVE-2022-31901: Memory corruption in n/a

> Attackers can crash Notepad++ by opening two crafted files due to a buffer overflow in the hotspot addition function.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 19 Jan 2023
- **Updated:** 4 Apr 2025
- **Also known as:** GHSA-v6qv-5wc9-pq33

## What is CVE-2022-31901?

CVE-2022-31901 is a medium-severity memory corruption vulnerability in n/a, published on 19 Jan 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Buffer overflow in function Notepad_plus::addHotSpot in Notepad++ v8.4.3 and earlier allows attackers to crash the application via two crafted files.

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

## Which versions are affected by CVE-2022-31901?

It affects 1 product.


Products: Notepad-Plus-Plus Notepad\+\+.

## How do I fix CVE-2022-31901?

No fix has been published for CVE-2022-31901 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-31901 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-31901 exists.

Public exploit code:

- https://github.com/CDACesec/CVE-2022-31901 (github_poc): https://github.com/CDACesec/CVE-2022-31901

## Other vulnerabilities in n/a

- [CVE-2025-15556](https://insights.sbomify.com/CVE-2025-15556/): Notepad++ Download of Code Without Integrity Check (high 7.7, exploited in the wild)
- [CVE-2026-48778](https://insights.sbomify.com/CVE-2026-48778/): Notepad++: Arbitrary Code Execution via config.xml commandLineInterpreter (high 7.8)
- [CVE-2026-48800](https://insights.sbomify.com/CVE-2026-48800/): Notepad++: Arbitrary Code Execution via shortcuts.xml UserCommand Injection (high 7.8)
- [CVE-2026-52884](https://insights.sbomify.com/CVE-2026-52884/): Notepad++: CVE-2026-48800 Bypass (high 7.8)
- [CVE-2023-47452](https://insights.sbomify.com/CVE-2023-47452/): Privilege escalation in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-31901 and fix it if it is affected.

What it is: CVE-2022-31901 is a medium-severity memory corruption vulnerability in n/a, published on 19 Jan 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-31901 exists.

Affected product: n/a. 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-2022-31901/ (Markdown: https://insights.sbomify.com/CVE-2022-31901/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-31901
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-31901
- OSV: https://osv.dev/vulnerability/CVE-2022-31901

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-31901/
Summaries are generated and may contain mistakes; the official description above is the record.