CVE-2026-43284 Dirty Flag (Local Privilege Escalation)

As of early May 2026, Dirty Frag refers to a high-severity Linux kernel vulnerability (CVE-2026-43284 and CVE-2026-43500).Impact: It allows unprivileged users to gain root access (full administrative control) by exploiting how the kernel handles memory fragmentation and networking.Scope: It affects most major distributions released since 2017 (e.g., Ubuntu, RHEL, Fedora) and is considered more reliable than previous "race-condition" exploits Vulnerable list of linux

A 143 144 Linux: Linux xxxx 5.4.0-104-generic #118-Ubuntu SMP Wed Mar 2 19:02:41 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux ldd --version: ldd (Ubuntu GLIBC 2.35-0ubuntu3.1) 2.35 Linux: Linux xxxx 5.15.0-53-generic #59-Ubuntu SMP Mon Oct 17 18:53:30 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

B 149 150 Linux: Linux xxxx 5.9.0-050900-generic #202010112230 SMP Sun Oct 11 22:34:01 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux ldd --version: ldd (Ubuntu GLIBC 2.31-0ubuntu9.9) 2.31

Linux: Linux xxxx 5.15.0-52-generic #58-Ubuntu SMP Thu Oct 13 08:03:55 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

C 157 Linux: Linux xxxx 5.15.0-52-generic #58-Ubuntu SMP Thu Oct 13 08:03:55 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux ldd --version: ldd (Ubuntu GLIBC 2.35-0ubuntu3.1) 2.35

Kali Linux: Linux xxxx 6.16.8+kali-amd64 #1 SMP PREEMPT_DYNAMIC Kali 6.16.8-1kali1 (2025-09-24) x86_64 GNU/Linux Python: Python 3.13.9 (main, Oct 15 2025, 14:56:22) [GCC 15.2.0] on linux

Run command: ./exp

Result:

id
uid=0(root) ........