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Vulnerability record · CVE-2022-27226 · published 19 March 2022

CVE-2022-27226: Irz ru21 firmware cross-site request forgery vulnerability

Irz · Ru21 Firmware

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.

8.8 CVSS 3.1 High EPSS 34% · top 1.7% CWE-352 · Cross-site request forgery
8.8CVSS 3.1 base score, v2 9.3
34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
8References, 6 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/166396/iRZ-Mobile-Router-Cross-Site-Request-Forgery-Remote-Code-Execution.html ExploitThird Party AdvisoryVDB Entry
https://en.irz.ru Product
https://github.com/SakuraSamuraii/ez-iRZ ExploitThird Party Advisory
https://johnjhacking.com/blog/cve-2022-27226/ ExploitThird Party Advisory
http://packetstormsecurity.com/files/166396/iRZ-Mobile-Router-Cross-Site-Request-Forgery-Remote-Code-Execution.html ExploitThird Party AdvisoryVDB Entry
https://en.irz.ru Product
https://github.com/SakuraSamuraii/ez-iRZ ExploitThird Party Advisory
https://johnjhacking.com/blog/cve-2022-27226/ ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-27226), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.