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No exploitation reported

CVE-2022-4221

No exploitation reported by the sources we read.

  • Published2022-12-01
  • WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Asus NAS-M25 allows an unauthenticated attacker to inject arbitrary OS commands via unsanitized cookie values.This issue affects NAS-M25: through 1.0.1.7.

Timeline

dates in UTC
  1. 2022-12-0110:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-4221?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-4221?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Asus nas-m25 firmwareversion to verify
BranchAffectedFixed in
1.0≤ 1.0.1.7no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As ONEKEY, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Asus NAS-M25other versions: not affected
    Affected
    • ≤ 1.0.1.7no fix statedcustom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2022-12-01

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2025-04-14
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.19.8known since 2026-10-23
  • NVDCVSS 3.19.8read 2026-10-23
  • CNAweakness (CWE)CWE-78known since 2026-10-23
  • NVDweakness (CWE)CWE-78read 2026-10-23
  • FIRST EPSSEPSS score4.8 %2026-11-03
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2022-12-01
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-pqv9-66jx-6q5v

Frequently asked questions

What is CVE-2022-4221?

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Asus NAS-M25 allows an unauthenticated attacker to inject arbitrary OS commands via unsanitized cookie values.This issue affects NAS-M25: through 1.0.1.7.

Is CVE-2022-4221 actively exploited?

Active exploitation of CVE-2022-4221 has not been confirmed. Its EPSS score was 4.8% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-4221?

CVE-2022-4221 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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