# CVE-2019-20095: Denial of service in n/a

> A memory leak in the Marvell mwifiex driver allows attackers to cause a denial of service by triggering error-handling cases that fail to free allocated memory.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **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:** Yes
- **Published:** 30 Dec 2019
- **Updated:** 8 Oct 2026
- **Also known as:** DEBIAN-CVE-2019-20095, GHSA-vc4c-8vcq-gmvh, UBUNTU-CVE-2019-20095

## What is CVE-2019-20095?

CVE-2019-20095 is a medium-severity denial of service vulnerability in Linux kernel, published on 30 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c in the Linux kernel before 5.1.6 has some error-handling cases that did not free allocated hostcmd memory, aka CID-003b686ace82. This will cause a memory leak and denial of service.

Weakness: CWE-401 (Missing Release of Memory after Effective Lifetime)

## Which versions are affected by CVE-2019-20095?

It affects 14 products.


Products: Linux kernel, Netapp 8300 Firmware, Netapp 8700 Firmware, Netapp A400 Firmware, Netapp A700s Firmware, Netapp Active Iq Unified Manager, Netapp Cloud Backup, Netapp Data Availability Services, Netapp E-Series Santricity Os Controller, Netapp H610s Firmware, Netapp Hci Management Node, Netapp Solidfire, Netapp Steelstore Cloud Integrated Storage, Opensuse Leap.

## How do I fix CVE-2019-20095?

Apply the vendor's patch.

## Is CVE-2019-20095 being exploited?

There is no known exploitation of CVE-2019-20095 in the wild and no public exploit code.

## Other vulnerabilities in Linux kernel

- [CVE-2026-53266](https://insights.sbomify.com/CVE-2026-53266/): Linux Kernel Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2013-6282](https://insights.sbomify.com/CVE-2013-6282/): Linux Kernel Improper Input Validation (high 8.8, exploited in the wild)
- [CVE-2022-0185](https://insights.sbomify.com/CVE-2022-0185/): Linux Kernel Heap-Based Buffer Overflow (high 8.4, exploited in the wild)
- [CVE-2013-2094](https://insights.sbomify.com/CVE-2013-2094/): Linux Kernel Privilege Escalation (high 8.4, exploited in the wild)
- [CVE-2026-53362](https://insights.sbomify.com/CVE-2026-53362/): Linux Kernel Unspecified (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-20095 and fix it if it is affected.

What it is: CVE-2019-20095 is a medium-severity denial of service vulnerability in Linux kernel, published on 30 Dec 2019. 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-2019-20095 in the wild and no public exploit code.

Affected product: Linux kernel. 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-2019-20095/ (Markdown: https://insights.sbomify.com/CVE-2019-20095/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-20095
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-20095
- OSV: https://osv.dev/vulnerability/CVE-2019-20095

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-20095/
Summaries are generated and may contain mistakes; the official description above is the record.