New Linux ‘Copy Fail’ flaw gives hackers root on major distros

BleepingComputer

April 30, 2026 at 1:54 PM

Linux Exploit Vulnerability Privilege Escalation

Overview

A new vulnerability known as 'Copy Fail' has been identified in Linux kernels released since 2017. This flaw allows local, unprivileged attackers to escalate their privileges and gain root access to affected systems. Researchers have published an exploit for this vulnerability, raising concerns about its potential for misuse. Major Linux distributions are at risk, which could allow attackers to take control of sensitive systems. Users of these systems should be aware of the threat and take steps to secure their environments.

Key Takeaways

Affected Systems: Linux kernels released since 2017, major Linux distributions
Action Required: Users should apply the latest security patches for their Linux distributions as they become available.
Timeline: Newly disclosed

Original Article Summary

An exploit has been published for a local privilege escalation vulnerability dubbed "Copy Fail" that impacts Linux kernels released since 2017, allowing an unprivileged local attacker to gain root permissions. [...]

Impact

Linux kernels released since 2017, major Linux distributions

Exploitation Status

The exploitation status is currently unknown. Monitor vendor advisories and security bulletins for updates.

Timeline

Newly disclosed

Remediation

Users should apply the latest security patches for their Linux distributions as they become available. Regular updates and monitoring for security advisories are recommended.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Linux, Exploit, Vulnerability, and 1 more.

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