CVE-2022-27226

Ru21 Firmware vulnerability

CVSS

8.8

EPSS

33.7%

EPSS pct

98th

Exploited

No known

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.

Affected vendor

Irz

Affected product

Ru21 Firmware

CVSS vector

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

Weakness type (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Published

2022-03-19

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 33.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2022-27226

Confirm whether Irz Ru21 Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2022-27226.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-27226

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2022-27226 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2022-27226?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2022-27226.

Start free scan

No credit card. Agentless.

Related vulnerabilities