# CVE-2024-47501: Null dereference in Junos OS

> A local attacker can cause a denial of service by triggering a null pointer dereference in specific show commands within VPLS or Junos Fusion scenarios.

- **Severity:** Medium 6.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Oct 2024
- **Updated:** 11 Oct 2024
- **Also known as:** GHSA-9w3v-447q-g6xg

## What is CVE-2024-47501?

CVE-2024-47501 is a medium-severity vulnerability in Juniper Junos, published on 11 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A NULL Pointer Dereference vulnerability in the 

packet forwarding engine (pfe) of Juniper Networks Junos OS on MX304, MX with MPC10/11/LC9600, and EX9200 with EX9200-15C allows a locally authenticated attacker with low privileges to cause a Denial of Service (DoS).

In a VPLS or Junos Fusion scenario, the execution of specific show commands will cause all FPCs hosting VPLS sessions or connecting to satellites to crash and restart.

This issue affects Junos on MX304, MX with MPC10/11/LC9600 and EX9200 with EX9200-15C: 

  *  All version before 21.2R3-S1,
  *  21.3 versions before 21.3R3, 
  *  21.4 versions before 21.4R2.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2024-47501?

It affects 1 product.


Products: Juniper Junos.

## How do I fix CVE-2024-47501?

No fix has been published for CVE-2024-47501 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-47501 being exploited?

There is no known exploitation of CVE-2024-47501 in the wild and no public exploit code.

## Other vulnerabilities in Juniper Junos

- [CVE-2023-36845](https://insights.sbomify.com/CVE-2023-36845/): Juniper Junos OS EX Series and SRX Series PHP External Variable Modification (critical 9.8, exploited in the wild)
- [CVE-2020-1631](https://insights.sbomify.com/CVE-2020-1631/): Juniper Junos OS Path Traversal (high 8.8, exploited in the wild)
- [CVE-2025-21590](https://insights.sbomify.com/CVE-2025-21590/): Juniper Junos OS Improper Isolation or Compartmentalization (medium 6.7, exploited in the wild)
- [CVE-2023-36851](https://insights.sbomify.com/CVE-2023-36851/): Juniper Junos OS SRX Series Missing Authentication for Critical Function (medium 5.3, exploited in the wild)
- [CVE-2023-36844](https://insights.sbomify.com/CVE-2023-36844/): Juniper Junos OS EX Series PHP External Variable Modification (medium 5.3, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-47501 and fix it if it is affected.

What it is: CVE-2024-47501 is a medium-severity vulnerability in Juniper Junos, published on 11 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-47501 in the wild and no public exploit code.

Affected product: Juniper Junos. 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-2024-47501/ (Markdown: https://insights.sbomify.com/CVE-2024-47501/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-47501
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-47501
- OSV: https://osv.dev/vulnerability/CVE-2024-47501

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-47501/
Summaries are generated and may contain mistakes; the official description above is the record.