CVE-2022-4221Public exploitNetwork attack vector

Unauthenticated command execution via unsanitized cookie

Published Dec 1, 2022 · Updated Apr 14, 2025

OS command injection in ASUSTeK NAS-M25 1.0.1.7 and earlier allows remote attackers to execute arbitrary commands via crafted cookies. Added AjaXplorer authentication code passes an unsanitized cookie value to exec(), where a semicolon starts an attacker-supplied command. Successful exploitation requires only network access to the unauthenticated web path and permits commands that can read, change, or interrupt appliance data and services.

CVSS severity9.8
Critical
EPSS probability4.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in ASUSTeK NAS-M25 1.0.1.7 and earlier allows remote attackers to execute arbitrary commands via crafted cookies. Added AjaXplorer authentication code passes an unsanitized cookie value to exec(), where a semicolon starts an attacker-supplied command. Successful exploitation requires only network access to the unauthenticated web path and permits commands that can read, change, or interrupt appliance data and services.

The record

CVE
CVE-2022-4221
Published
Dec 1, 2022
Updated
Apr 14, 2025
Vendor
ASUSTeK Computer Inc.
Product
NAS-M25
Classifications
CWE-78, CAPEC-88, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 1, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.0.1.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ASUSTeK Computer Inc. · NAS-M25version=0 <=1.0.1.7

Published CVSS scores

9.8ONEKEY GmbHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS Command Injection
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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