---
title: "CVE-2026-93079: Linux Kernel - Out of Bounds Write"
description: "Linux kernel contains a heap out-of-bounds write caused by improper validation of feature count against output buffer size in cxlctl_get_feature(), letting attackers cause memory corruption, exploit requires crafted request."
url: https://panop.io/threat-heartbeat/CVE-2026-93079/
---

# CVE-2026-93079 Linux Kernel - Out of Bounds Write

Linux kernel contains a heap out-of-bounds write caused by improper validation of feature count against output buffer size in cxlctl\_get\_feature(), letting attackers cause memory corruption, exploit requires crafted request.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.17% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-93079)

## Details

Type

Out of Bounds Write

Impact

Denial Of Service, Remote Code Execution

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

17 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-93079](https://nvd.nist.gov/vuln/detail/CVE-2026-93079)
- [https://git.kernel.org/stable/c/329ea475581c647a680a6937e353c1a6e2534b40](https://git.kernel.org/stable/c/329ea475581c647a680a6937e353c1a6e2534b40)
- [https://git.kernel.org/stable/c/3f02031a0a53de0d3ef066c92d0486b2b11be40c](https://git.kernel.org/stable/c/3f02031a0a53de0d3ef066c92d0486b2b11be40c)
- [https://git.kernel.org/stable/c/4bf6bac375076ced2fa4b3fef8739bd985f93456](https://git.kernel.org/stable/c/4bf6bac375076ced2fa4b3fef8739bd985f93456)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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