# CVE-2023-44247: Use after free in FortiOS

> A privileged attacker can execute arbitrary code or commands on FortiOS devices by sending crafted HTTP or HTTPS requests due to a double free vulnerability.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 May 2024
- **Updated:** 14 Jan 2026
- **Also known as:** GHSA-f7hp-qcv4-6w2q

## What is CVE-2023-44247?

CVE-2023-44247 is a medium-severity use after free vulnerability in Fortinet Fortios, published on 14 May 2024. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A double free vulnerability [CWE-415] vulnerability in Fortinet FortiOS 6.4 all versions may allow a privileged attacker to execute code or commands via crafted HTTP or HTTPs requests.

Weakness: CWE-415 (Double Free)

## Which versions are affected by CVE-2023-44247?

It affects 1 product.


Products: Fortinet Fortios.

## How do I fix CVE-2023-44247?

No fix has been published for CVE-2023-44247 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-44247 being exploited?

There is no known exploitation of CVE-2023-44247 in the wild and no public exploit code.

## Other vulnerabilities in Fortinet Fortios

- [CVE-2024-23113](https://insights.sbomify.com/CVE-2024-23113/): Fortinet Multiple Products Format String (critical 9.8, exploited in the wild)
- [CVE-2022-40684](https://insights.sbomify.com/CVE-2022-40684/): Fortinet Multiple Products Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2024-55591](https://insights.sbomify.com/CVE-2024-55591/): Fortinet FortiOS and FortiProxy Authentication Bypass (critical 9.6, exploited in the wild)
- [CVE-2024-21762](https://insights.sbomify.com/CVE-2024-21762/): Fortinet FortiOS Out-of-Bound Write (critical 9.6, exploited in the wild)
- [CVE-2022-42475](https://insights.sbomify.com/CVE-2022-42475/): Fortinet FortiOS Heap-Based Buffer Overflow (critical 9.3, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-44247 and fix it if it is affected.

What it is: CVE-2023-44247 is a medium-severity use after free vulnerability in Fortinet Fortios, published on 14 May 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-44247 in the wild and no public exploit code.

Affected product: Fortinet Fortios. 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-2023-44247/ (Markdown: https://insights.sbomify.com/CVE-2023-44247/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-44247
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-44247
- OSV: https://osv.dev/vulnerability/CVE-2023-44247

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-44247/
Summaries are generated and may contain mistakes; the official description above is the record.