CVE-2022-27226

Exp

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.

Published: 2022-03-19 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-27226 is rated High Exploit Risk (80.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.19%). 4 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2022-27226

EDB-ID Source Kind Published Link
50832 exploit_db edb 2022-03-22 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-27226

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-10 3.03% 3.19% +0.16%
2 2026-03-07 2.54% 3.03% +0.50%
3 2026-01-28 — 2.54% —

Full EPSS history (47 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-27226

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2022-27226

Affected software / configurations for CVE-2022-27226

Vendor Product Version Raw CPE
irz ru21_firmware <= 2022-03-16 cpe:2.3:o:irz:ru21_firmware:*:*:*:*:*:*:*:*
irz ru21w_firmware <= 2022-03-16 cpe:2.3:o:irz:ru21w_firmware:*:*:*:*:*:*:*:*
irz rl21_firmware <= 2022-03-16 cpe:2.3:o:irz:rl21_firmware:*:*:*:*:*:*:*:*
irz ru41_firmware <= 2022-03-16 cpe:2.3:o:irz:ru41_firmware:*:*:*:*:*:*:*:*
irz rl01_firmware <= 2022-03-16 cpe:2.3:o:irz:rl01_firmware:*:*:*:*:*:*:*:*

References for CVE-2022-27226

cvelogic Threat Intelligence