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'CopyFail' attackers start cashing in on Linux flaw

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Researchers dropped a reliable root exploit and it didn’t sit idle for long

CISA is warning that a newly-disclosed Linux kernel bug dubbed "CopyFail" is already being exploited, just days after researchers dropped a working root-level exploit.

Tracked as CVE-2026-31431, the bug sits in the Linux kernel and gives low-level users a way to take full control of a system by modifying data they should only be able to read, effectively turning limited access into full root privileges on unpatched machines.

The issue was disclosed by cybersecurity consultancy Theori, which said the flaw was discovered by its AI-powered penetration testing platform, Xint, and reported to the Linux kernel security team on March 23. Major Linux distributions pushed out patches ahead of public disclosure, which Theori published alongside a proof-of-concept exploit.

The Python-based code works against Ubuntu 24.04 LTS, Amazon Linux 2023, RHEL 10.1, and SUSE 16, but the researchers...

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Check Point Embarks on a Mission to Transform Network Security Management with its Agentic Network Security Orchestration Platform, to Replace Decades of Rule-Based Complexity

Check Point Software Technologies Ltd, a pioneer and global leader in cyber security solutions, today launched its Agentic Network Security Orchestration Platform, a purpose-built autonomous agent architecture that executes network security operations across enterprise environments, without requiring constant human intervention. The launch continues the company’s mission to fundamentally transform