Critical OpenSSH Vulnerability: The Importance of Keeping Systems Updated

Thomas Hampson
2 min readJul 3, 2024

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An open laptop sitting on a desk. The screen shows a pirate flag, indicating it has been taken over by hackers.
Photo by Michael Geiger on Unsplash

A recently discovered vulnerability, dubbed “regreSSHion”, affects millions of Linux systems using OpenSSH. This critical flaw (CVE-2024–6387) arises from a signal handler race condition, exposing affected versions to unauthorised remote code execution.

This vulnerability has the potential to lead to full system compromise, unauthorised access, and network-wide threats. The immediate patching of affected systems and stringent access controls are critical to mitigating the risks posed by this and similar vulnerabilities effectively.

A lesson in system maintenance

The “regreSSHion” vulnerability serves to highlight the critical importance of keeping systems up to date with the latest security patches. Regular updates and thorough regression testing are essential practices to prevent the reintroduction of old vulnerabilities.

Organisations should adopt robust patch management processes and employ monitoring tools to detect and respond to unusual activities. Effective asset management tools can facilitate the timely identification and remediation of vulnerabilities.

Implementing best practices in your business

Small IT teams, limited resources, and ever increasing demands, mean that small to medium-sized businesses often struggle with their cybersecurity.

At Meta8, a UK-based software development and consultancy firm, we offer consulting and hands-on services to secure your cloud infrastructure and harden business-critical applications, helping businesses like yours to strengthen their cybersecurity defences and mitigate costly cyberattacks.

Find out more about our services on our website.

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Thomas Hampson
Thomas Hampson

Written by Thomas Hampson

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Co-Founder @ Meta8 - UK-based Software Development Company

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