# CVE-2014-6380: Denial of service in n/a

> Remote attackers can cause denial of service on Juniper Junos devices via crafted fragmented packets when specific routing protocols are configured.

- **Severity:** High 7.8 (`AV:N/AC:L/Au:N/C:N/I:N/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Oct 2014
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-xw4x-fmj4-2fg7

## What is CVE-2014-6380?

CVE-2014-6380 is a high-severity denial of service vulnerability in Juniper Junos, published on 14 Oct 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Juniper Junos 11.4 before R11, 12.1 before R9, 12.1X44 before D30, 12.1X45 before D20, 12.1X46 before D15, 12.1X47 before D10, 12.2 before R8, 12.2X50 before D70, 12.3 before R6, 13.1 before R4, 13.1X49 before D55, 13.1X50 before D30, 13.2 before R4, 13.2X50 before D20, 13.2X51 before D15, 13.2X52 before D15, 13.3 before R1, when using an em interface to connect to a certain internal network, allows remote attackers to cause a denial of service (em driver bock and FPC reset or "go offline") via a series of crafted (1) CLNP fragmented packets, when clns-routing or ESIS is configured, or (2) IPv4 or (3) IPv6 fragmented packets.

## Which versions are affected by CVE-2014-6380?

It affects 1 product.


Products: Juniper Junos.

## How do I fix CVE-2014-6380?

No fix has been published for CVE-2014-6380 yet. Limit exposure of the affected software until one is available.

## Is CVE-2014-6380 being exploited?

There is no known exploitation of CVE-2014-6380 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-2014-6380 and fix it if it is affected.

What it is: CVE-2014-6380 is a high-severity denial of service vulnerability in Juniper Junos, published on 14 Oct 2014. 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-2014-6380 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-2014-6380/ (Markdown: https://insights.sbomify.com/CVE-2014-6380/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-6380
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-6380
- OSV: https://osv.dev/vulnerability/CVE-2014-6380

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-6380/
Summaries are generated and may contain mistakes; the official description above is the record.