# CVE-2006-3529: Denial of service in n/a

> Remote attackers can cause a denial of service in Juniper JUNOS devices by sending crafted IPv6 packets that trigger a kernel memory leak.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Jul 2006
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-vw97-4p4v-w7fq

## What is CVE-2006-3529?

CVE-2006-3529 is a medium-severity denial of service vulnerability in Juniper Junos, published on 12 Jul 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Memory leak in Juniper JUNOS 6.4 through 8.0, built before May 10, 2006, allows remote attackers to cause a denial of service (kernel packet memory consumption and crash) via crafted IPv6 packets whose buffers are not released after they are processed.

## Which versions are affected by CVE-2006-3529?

It affects 1 product.


Products: Juniper Junos.

## How do I fix CVE-2006-3529?

No fix has been published for CVE-2006-3529 yet. Limit exposure of the affected software until one is available.

## Is CVE-2006-3529 being exploited?

There is no known exploitation of CVE-2006-3529 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-2006-3529 and fix it if it is affected.

What it is: CVE-2006-3529 is a medium-severity denial of service vulnerability in Juniper Junos, published on 12 Jul 2006. 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-2006-3529 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-2006-3529/ (Markdown: https://insights.sbomify.com/CVE-2006-3529/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2006-3529
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2006-3529
- OSV: https://osv.dev/vulnerability/CVE-2006-3529

---
From sbomify Insights: https://insights.sbomify.com/CVE-2006-3529/
Summaries are generated and may contain mistakes; the official description above is the record.