CVE-2022-27226

HIGH EXPLOITED IN THE WILD

iRZ Mobile Router Firmware < 2022-03-16 - Cross-Site Request Forgery via Crontab API

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2022-27226 has been observed exploited in the wild (reported by VulnCheck KEV, InTheWild.io). EIP tracks 2 public exploits from researchers including John Jackson, SakuraSamuraii.

AI-analyzed exploit summary This exploit demonstrates a CSRF to RCE vulnerability in iRZ Mobile Routers. It allows an attacker to execute arbitrary commands via a crafted crontab entry, leading to a reverse shell. The exploit includes both post-authentication and CSRF-based attack vectors.

Description

A CSRF issue in /api/crontab on iRZ Mobile Routers through 2022-03-16 allows a threat actor to create a crontab entry in the router administration panel. The cronjob will consequently execute the entry on the threat actor's defined interval, leading to remote code execution, allowing the threat actor to gain filesystem access. In addition, if the router's default credentials aren't rotated or a threat actor discovers valid credentials, remote code execution can be achieved without user interaction.

Exploits (2)

exploitdb WORKING POC
by John Jackson · pythonremotehardware
https://www.exploit-db.com/exploits/50832

This exploit demonstrates a CSRF to RCE vulnerability in iRZ Mobile Routers. It allows an attacker to execute arbitrary commands via a crafted crontab entry, leading to a reverse shell. The exploit includes both post-authentication and CSRF-based attack vectors.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: iRZ Mobile Router (RU21, RU21w, RL21, RU41, RL01) through 2022-03-16
No auth needed
Prerequisites: Network access to the router · Victim interaction for CSRF (exploit2) · Credentials for post-auth RCE (exploit1)
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 15 stars
by SakuraSamuraii · poc
https://github.com/SakuraSamuraii/ez-iRZ

This repository contains a functional exploit for CVE-2022-27226, which leverages a CSRF vulnerability in iRZ Mobile Routers to achieve remote code execution via cronjob manipulation. The exploit supports both authenticated and unauthenticated attack vectors, with detailed instructions for achieving a reverse shell.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: iRZ Mobile Routers (through 2022-03-16)
No auth needed
Prerequisites: Network access to the target router · For CSRF: Victim interaction or valid credentials · For authenticated RCE: Valid router credentials
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Product x_refsource_misc
https://en.irz.ru
Exploit, Third Party Advisory x_refsource_misc
https://johnjhacking.com/blog/cve-2022-27226/
Exploit, Third Party Advisory x_refsource_misc
https://github.com/SakuraSamuraii/ez-iRZ

Scores

CVSS v3 8.8
EPSS 0.3453
EPSS Percentile 98.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

VulnCheck KEV 2022-04-12
InTheWild.io 2022-05-30
CWE
CWE-352
Status published
Products (5)
irz/rl01_firmware < 2022-03-16
irz/rl21_firmware < 2022-03-16
irz/ru21_firmware < 2022-03-16
irz/ru21w_firmware < 2022-03-16
irz/ru41_firmware < 2022-03-16
Published Mar 19, 2022
Tracked Since Feb 18, 2026