---
title: "CVE-2026-89616: Linux Kernel - Information Disclosure"
description: "Linux kernel contains an information disclosure vulnerability in fs/ntfs3 due to uninitialized memory leak on partial LZNT decompression in ni_read_frame(), letting local attackers leak kernel memory and defeat KASLR, exploit requires crafted compressed file."
url: https://panop.io/threat-heartbeat/CVE-2026-89616/
---

# CVE-2026-89616 Linux Kernel - Information Disclosure

Linux kernel contains an information disclosure vulnerability in fs/ntfs3 due to uninitialized memory leak on partial LZNT decompression in ni\_read\_frame(), letting local attackers leak kernel memory and defeat KASLR, exploit requires crafted compressed file.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.41% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-89616)

## Details

Type

Information Disclosure

Impact

Information Disclosure

CVSS vector

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

Published

11 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-2026-89616](https://nvd.nist.gov/vuln/detail/CVE-2026-89616)
- [https://git.kernel.org/stable/c/7d60a4c49af4d5cb88aa7cbf998d0408bd415055](https://git.kernel.org/stable/c/7d60a4c49af4d5cb88aa7cbf998d0408bd415055)
- [https://git.kernel.org/stable/c/cd40eee4923d104ebec9ac7513b971bc441e431d](https://git.kernel.org/stable/c/cd40eee4923d104ebec9ac7513b971bc441e431d)
- [https://git.kernel.org/stable/c/0f699ddb290a24b37e1bc9bf1e3c9dbccf564bea](https://git.kernel.org/stable/c/0f699ddb290a24b37e1bc9bf1e3c9dbccf564bea)
- [https://git.kernel.org/stable/c/35d1ea92c7d946e2ebdbe36cdb2c969c8704bebd](https://git.kernel.org/stable/c/35d1ea92c7d946e2ebdbe36cdb2c969c8704bebd)
- [https://git.kernel.org/stable/c/376ee45659a4b943df672ad275c63da00655f929](https://git.kernel.org/stable/c/376ee45659a4b943df672ad275c63da00655f929)
- [https://git.kernel.org/stable/c/4a1b39b2e10eb8de86265e80cf2be4396bc1dce4](https://git.kernel.org/stable/c/4a1b39b2e10eb8de86265e80cf2be4396bc1dce4)
- [https://git.kernel.org/stable/c/77d8efd04745cda23858546afdbd9d07b591758e](https://git.kernel.org/stable/c/77d8efd04745cda23858546afdbd9d07b591758e)

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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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