# CVE-2023-47091: Integer overflow in n/a

> An attacker can cause a denial of service by overflowing the cookie threshold, preventing IPsec connections in Stormshield Network Security.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 25 Dec 2023
- **Updated:** 23 Apr 2025
- **Also known as:** GHSA-ch6f-2w93-3p64

## What is CVE-2023-47091?

CVE-2023-47091 is a high-severity vulnerability in n/a, published on 25 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in Stormshield Network Security (SNS) SNS 4.3.13 through 4.3.22 before 4.3.23, SNS 4.6.0 through 4.6.9 before 4.6.10, and SNS 4.7.0 through 4.7.1 before 4.7.2. An attacker can overflow the cookie threshold, making an IPsec connection impossible.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2023-47091?

It affects 1 product.


Products: Stormshield Stormshield Network Security.

## How do I fix CVE-2023-47091?

No fix has been published for CVE-2023-47091 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-47091 being exploited?

There is no known exploitation of CVE-2023-47091 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-31617](https://insights.sbomify.com/CVE-2021-31617/): Memory corruption in n/a (critical 9.8)
- [CVE-2018-20850](https://insights.sbomify.com/CVE-2018-20850/): Cross-site scripting in n/a (high 8.2)
- [CVE-2025-48707](https://insights.sbomify.com/CVE-2025-48707/): Information disclosure in n/a (high 7.5)
- [CVE-2023-28616](https://insights.sbomify.com/CVE-2023-28616/): Information disclosure in n/a (high 7.5)
- [CVE-2023-26095](https://insights.sbomify.com/CVE-2023-26095/): Denial of service in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-47091 and fix it if it is affected.

What it is: CVE-2023-47091 is a high-severity vulnerability in n/a, published on 25 Dec 2023. 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-2023-47091 in the wild and no public exploit code.

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-2023-47091/ (Markdown: https://insights.sbomify.com/CVE-2023-47091/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-47091
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-47091
- OSV: https://osv.dev/vulnerability/CVE-2023-47091

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-47091/
Summaries are generated and may contain mistakes; the official description above is the record.