# CVE-2022-45313: Memory corruption in n/a

> Attackers can execute arbitrary code on Mikrotik RouterOS devices via a crafted nova message due to an out-of-bounds read in the hotspot process.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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:** 5 Dec 2022
- **Updated:** 24 Apr 2025
- **Also known as:** GHSA-594p-57w5-rx5h

## What is CVE-2022-45313?

CVE-2022-45313 is a high-severity memory corruption vulnerability in Mikrotik Routeros, published on 5 Dec 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Mikrotik RouterOs before stable v7.5 was discovered to contain an out-of-bounds read in the hotspot process. This vulnerability allows attackers to execute arbitrary code via a crafted nova message.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2022-45313?

It affects 1 product.


Products: Mikrotik Routeros.

## How do I fix CVE-2022-45313?

No fix has been published for CVE-2022-45313 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-45313 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-45313 exists.

## Other vulnerabilities in Mikrotik Routeros

- [CVE-2018-7445](https://insights.sbomify.com/CVE-2018-7445/): MikroTik RouterOS Stack-Based Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2026-86060](https://insights.sbomify.com/CVE-2026-86060/): MikroTik RouterOS Improper Neutralization of Argument Delimiters in a Command (critical 9.2, exploited in the wild)
- [CVE-2018-14847](https://insights.sbomify.com/CVE-2018-14847/): MikroTik Router OS Directory Traversal (critical 9.1, exploited in the wild)
- [CVE-2026-67277](https://insights.sbomify.com/CVE-2026-67277/): MikroTik RouterOS Missing Authentication for Critical Function (high 8.8, exploited in the wild)
- [CVE-2026-67279](https://insights.sbomify.com/CVE-2026-67279/): Mikrotik RouterOS Improper Enforcement of Behavioral Workflow (medium 6.9, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-45313 and fix it if it is affected.

What it is: CVE-2022-45313 is a high-severity memory corruption vulnerability in Mikrotik Routeros, published on 5 Dec 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-45313 exists.

Affected product: Mikrotik Routeros. 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-2022-45313/ (Markdown: https://insights.sbomify.com/CVE-2022-45313/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-45313
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-45313
- OSV: https://osv.dev/vulnerability/CVE-2022-45313

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-45313/
Summaries are generated and may contain mistakes; the official description above is the record.