Microsoft Defender is investigating a high-severity local privilege escalation vulnerability (CVE-2026-31431) affecting multiple major Linux distributions including Red Hat, SUSE, Ubuntu, and AWS ...

PCWorld reports that a critical Linux vulnerability called ‘Copy Fail’ (CVE-2026-31431) allows unprivileged users to hijack system privileges by altering cached files. This straight-line logic flaw ...

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CISA has warned that threat actors have started exploiting the "Copy Fail" Linux security vulnerability in the wild, one day after Theori researchers disclosed it and shared a proof-of-concept (PoC) ...

On April 29, 2026, security researchers at Theori and Xint Code publicly disclosed CVE-2026-31431, a Linux kernel privilege escalation vulnerability they named Copy Fail. Any unprivileged local user ...

Nearly every Linux distribution released since 2017 is currently vulnerable to a security bug called “Copy Fail” that allows any user to give themselves administrator privileg ...

Publicly released exploit code for an effectively unpatched vulnerability that gives root access to virtually all releases of Linux is setting off alarm bells as defenders scramble to ward off severe ...

The post Copy Fail (CVE-2026-31431): Frequently asked questions about Linux kernel privilege escalation vulnerability appeared first on Tenable Blog. A flaw in the Linux kernel present since 2017 ...

Developers of major Linux distributions have begun shipping patches to address a local privilege escalation (LPE) vulnerability arising from a logic flaw. The newly disclosed LPE, dubbed Copy Fail ...

Affecting the kernel’s authencesn cryptographic template, the vulnerability was introduced in 2017 and impacts all distributions. A high-severity logic bug in the Linux kernel allows unprivileged ...

Some users have reported that when they open MS Outlook, they receive an error message that Outlook is using an old copy of your Outlook data file (.ost). For some ...