---
title: "CVE-2026-93045: Linux Kernel - Memory Corruption"
description: "Linux kernel contains a memory corruption vulnerability caused by improper handling of scalar arena addresses in bpf_arena_free_pages(), letting attackers cause out-of-range frees leading to potential memory corruption, exploit requires crafted scalar arena addresses."
url: https://panop.io/threat-heartbeat/CVE-2026-93045/
---

# CVE-2026-93045 Linux Kernel - Memory Corruption

Linux kernel contains a memory corruption vulnerability caused by improper handling of scalar arena addresses in bpf\_arena\_free\_pages(), letting attackers cause out-of-range frees leading to potential memory corruption, exploit requires crafted scalar arena addresses.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.13% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-93045)

## Details

Type

Memory Corruption

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-2026-93045](https://nvd.nist.gov/vuln/detail/CVE-2026-93045)
- [https://git.kernel.org/stable/c/8a08635656037aee9c12231ed384449c4ffb1a93](https://git.kernel.org/stable/c/8a08635656037aee9c12231ed384449c4ffb1a93)
- [https://git.kernel.org/stable/c/90453eaf8f14e7be0ab03983f2a93aeb6b990a58](https://git.kernel.org/stable/c/90453eaf8f14e7be0ab03983f2a93aeb6b990a58)
- [https://git.kernel.org/stable/c/a968dffa5ab3c74d2ebb3a6233bf8b843f0bfc20](https://git.kernel.org/stable/c/a968dffa5ab3c74d2ebb3a6233bf8b843f0bfc20)
- [https://git.kernel.org/stable/c/b5a71cb2db6d84ac0042549dcec266b18429d41e](https://git.kernel.org/stable/c/b5a71cb2db6d84ac0042549dcec266b18429d41e)

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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

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