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CVE-2021-22555 CISA KEV · Actively exploited

Linux Kernel Heap Out-of-Bounds Write Vulnerability

CVSS score

—

EPSS probability

%78.7

Risk score

—

Published

1 y ago

Public Exploits · GitHub and Metasploit Intelligence

This tab scans the sources that NVD labels as exploits, GitHub repositories matching the CVE identifier and Rapid7 Metasploit Framework modules. Only links to sources that were actually found are shown.

Spydomain/CVE-2021-22555-Poc

Public PoCSource updated: 15.10.2026 10:13:29

WhatsWrongAndWhy/CVE-2021-22555

Public PoCSource updated: 21.07.2026 18:43:43

glutton-su/CVE-2021-22555

Public PoCSource updated: 25.02.2026 17:10:33

letsr00t/CVE-2021-22555

Public PoCSource updated: 27.02.2024 05:22:47

letsr00t/-2021-LOCALROOT-CVE-2021-22555

Public PoCSource updated: 05.02.2024 07:05:13

This repo hosts TUKRU's Linux Privilege Escalation exploit (CVE-2021-22555). It demonstrates gaining root privileges via a vulnerability. Tested on Ubuntu 5.8.0-48-generic and COS 5.4.89+. Use responsibly and ethically.

Public PoCSource updated: 05.09.2024 11:23:49

Linux Kernel 2.6.19 < 5.9 - 'Netfilter Local Privilege Escalation'

Public PoCSource updated: 16.07.2024 13:10:30

CVE-2021-22555 Exploit

Public PoCSource updated: 28.05.2026 09:24:22

CVE-2021-22555 exploit rewritten with pipe primitive

Public PoCSource updated: 18.05.2026 10:19:41

Linux Kernel 2.6.19 < 5.9 - 'Netfilter Local Privilege Escalation

Exploit referenceSource updated: 15.07.2021 00:00:00

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