# CVE-2019-6682: Denial of service in BIG-IP ASM

> Attackers can cause denial of service on resource-constrained F5 BIG-IP ASM systems by sending specific HTTP responses when response-side features are enabled.

- **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:** 23 Dec 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-xf2c-ffq9-v9qr

## What is CVE-2019-6682?

CVE-2019-6682 is a high-severity denial of service vulnerability in F5 Big-Ip Application Security Manager, published on 23 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

On versions 15.0.0-15.0.1.1, 14.0.0-14.1.2.2, 13.1.0-13.1.3.1, 12.1.0-12.1.5, and 11.5.2-11.6.5.1, the BIG-IP ASM system may consume excessive resources when processing certain types of HTTP responses from the origin web server. This vulnerability is only known to affect resource-constrained systems in which the security policy is configured with response-side features, such as Data Guard or response-side learning.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2019-6682?

It affects 1 product.


Products: F5 Big-Ip Application Security Manager.

## How do I fix CVE-2019-6682?

No fix has been published for CVE-2019-6682 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-6682 being exploited?

There is no known exploitation of CVE-2019-6682 in the wild and no public exploit code.

## Other vulnerabilities in F5 Big-Ip Application Security Manager

- [CVE-2019-6665](https://insights.sbomify.com/CVE-2019-6665/): Other in BIG-IP ASM (critical 9.4)
- [CVE-2019-6650](https://insights.sbomify.com/CVE-2019-6650/): Information disclosure in BIG-IP ASM (critical 9.1)
- [CVE-2025-24326](https://insights.sbomify.com/CVE-2025-24326/): BIG-IP Advanced WAF/ASM BADoS vulnerability (high 8.9)
- [CVE-2025-55669](https://insights.sbomify.com/CVE-2025-55669/): BIG-IP HTTP/2 vulnerability (high 8.7)
- [CVE-2009-4420](https://insights.sbomify.com/CVE-2009-4420/): Memory corruption in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-6682 and fix it if it is affected.

What it is: CVE-2019-6682 is a high-severity denial of service vulnerability in F5 Big-Ip Application Security Manager, published on 23 Dec 2019. 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-2019-6682 in the wild and no public exploit code.

Affected product: F5 Big-Ip Application Security Manager. 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-2019-6682/ (Markdown: https://insights.sbomify.com/CVE-2019-6682/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-6682
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-6682
- OSV: https://osv.dev/vulnerability/CVE-2019-6682

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-6682/
Summaries are generated and may contain mistakes; the official description above is the record.