CVE•Published 2022-03-23•Modified 2026-09-01•1 article on news•5 live references•NVD data
CVE-2022-27666Linux · Linux_kernel
Vulnerability data via NVD (ingested)
CVSS v3.1
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
92
Exploit Prediction Scoring System · top 8% of all CVEs
Weaknesses (CWE)
Description
A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat.
Timeline
Published 2022-03-23
Modified 2026-09-01
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag3 hosts
vuln:CVE-2022-27666Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Linux Kernel"Hosts Shodan identified as running Linux Kernel.
More intel sources (5)
Shodan report
vuln:CVE-2022-27666Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2022-27666Censys host search filtered to this CVE id.
grep.app
CVE-2022-27666Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2022-27666GitHub code search for direct mentions.
Google dork
"CVE-2022-27666" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (6)
CVE-2022-276666 repos
Mr-xn/Penetration_Testing_POCHTML
渗透测试有关的POC、EXP、脚本、提权、小工具等---About penetration-testing python-script poc getshell csrf xss cms php-getshell domainmod-xss csrf-webshell cobub-razor cve rce sql sql-poc poc-exp bypas…
xairy/linux-kernel-exploitationunknown
A collection of links related to Linux kernel security and exploitation
0xor0ne/awesome-listunknown
Cybersecurity oriented awesome list
Metarget/metargetPython
Metarget is a framework providing automatic constructions of vulnerable infrastructures.
bsauce/kernel-exploit-factoryC
Linux kernel CVE exploit analysis report and relative debug environment. You don't need to compile Linux kernel and configure your environment anymore.
bsauce/kernel-security-learningC
Anything about kernel security. CTF kernel pwn, kernel exploit, kernel fuzz and kernel defense paper, kernel debugging technique, kernel CVE debug.