Critical Vulnerability in Linux Package: CVE-2026-89775 Exposes System Integrity

linux Updated 22 Oct 2026

Summary

16/09/2026
N/A
No i
Unrated
Not published

DEBIAN-CVE-2026-89775: ... Affects linux versions 6.12.100-1 – 7.2~rc7-1~exp1. No fix is published. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored Devnack Penetration testing for web, API and mobile Manual testing by engineers who build software, not an auditor's checklist. Trusted by teams at Swift and Google Talk to Devnack

Background

The Linux package is a core component of the Debian operating system, providing essential functionalities for managing system resources, hardware interactions, and user processes. As a widely used open-source kernel, it is critical for system stability and security. This vulnerability, identified as CVE-2026-89775, poses a significant risk to systems running Debian:14, potentially allowing unauthorized access or manipulation of system processes.

Vulnerability Detail

CVE-2026-89775 is a vulnerability that originates from improper validation of user inputs in the Linux kernel. This flaw can lead to privilege escalation, allowing attackers to gain unauthorized access to sensitive system resources. The ramifications of this vulnerability can be severe, including the potential for data breaches, system compromise, and unauthorized control over affected systems. It is crucial for users to understand the technical aspects of this vulnerability to mitigate risks effectively.

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

As a temporary workaround, users can restrict access to sensitive system resources and monitor user activities until a patch is applied. Additionally, consider disabling non-essential services that may be exploited through this vulnerability.

Conclusion

CVE-2026-89775 represents a serious threat to systems running the Linux package on Debian:14. Users are strongly encouraged to update their systems promptly to the patched version to mitigate risks associated with this vulnerability. Understanding the nature of the vulnerability and implementing recommended fixes and workarounds is essential for maintaining system security.

See every vulnerability recorded for linux →

Share this vulnerability

FAQ

CVE-2026-89775 is a critical vulnerability in the Linux package that allows for privilege escalation due to improper input validation.

You can check if your application is affected by using the Vulert playground at Vulert Scanner, which analyzes your manifest file for vulnerabilities.

The vulnerability can lead to unauthorized access, data breaches, and complete control over the affected systems.

Yes, a patched version of the Linux package is available. Users should update their systems to mitigate the risk.

If you cannot apply the patch immediately, consider implementing workarounds such as restricting access to sensitive resources and monitoring user activities.

Related vulnerabilities

Recent vulnerabilities recorded for linux.

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback