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Exploit Released for Unpatched Ubuntu Linux Flaw Enabling Host-Root Container Es

BACKGROUND
1 SIGNALFIRST DETECTED 23 September 2026
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How the story developed
Other feeds and industry voices
7 Aug
18-Year-Old Linux SCTP Flaw Could Let Local Users Gain Root and Escape Containers

A use-after-free bug in Linux's SCTP networking code can be turned into full root on a host, and Tencent researchers say they used it to escape a container and reach the machine

REPORT · WHAT · The Hacker NewsOPEN STORY
22 Jul
Ubuntu snap-confine Flaw Could Give Local Users Root on Default Desktop Installs

Cybersecurity researchers have disclosed details of a new local privilege escalation (LPE) vulnerability in snap-confine that an unprivileged user can trigger to obtain root

REPORT · WHAT · The Hacker NewsOPEN STORY
19 May
DirtyDecrypt PoC Released for Linux Kernel CVE-2026-31635 LPE Vulnerability

Proof-of-concept (PoC) exploit code has now been released for a recently patched security flaw in the Linux kernel that could allow for local privilege escalation (LPE). Dubbed

REPORT · HOW · The Hacker NewsOPEN STORY
8 Jul
15-Year-Old GhostLock Flaw Enables Root and Container Escape on Most Linux Distros

Researchers at Nebula Security have disclosed GhostLock (CVE-2026-43499), a 15-year-old Linux kernel flaw that lets any logged-in user take full root control

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21 May
9-Year-Old Linux Kernel Flaw Enables Root Command Execution on Major Distros

Cybersecurity researchers have disclosed details of a vulnerability in the Linux kernel that remained undetected for nine years. The vulnerability, tracked as CVE-2026-46333 (CVSS

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14 Oct
AI-Found Linux Kernel Flaw Gives Local Users Root, and Can Break a Guest Out to the Host

A flaw in Linux's vhost subsystem lets a local user read and write kernel memory at will and become root across nearly a decade of kernel versions. In one virtualization setup, it

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6 Jul
Januscape: Guest-to-Host Escape in KVM/x86 [CVE-2026-53359]

<a href="https://news.ycombinator.com/item?id=48807908">Comments</a>

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15 Oct
Critical PwnEscape Linux Kernel Vulnerability Lets Guest VMs Read Host Memory

A newly disclosed critical flaw in the Linux kernel allows code inside a virtual machine to read memory on the host computer it runs on. A researcher demonstrated the leak against

REPORT · WHO · The Hacker NewsOPEN STORY
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