CVE-2022-28561Public exploitNetwork attack vector

Root shell via unfiltered deviceList command injection

Published May 3, 2022 · Updated Aug 3, 2024

Command injection in Tenda AX12 firmware 22.03.01.21_cn allows remote attackers to obtain a root shell through setMacFilterCfg. The handler passes the deviceList form value to doSystem without command filtering, although the CVE description labels the defect a stack overflow. NVD treats the path as unauthenticated and network-reachable; successful exploitation executes commands with the router service's privileges.

CVSS severity9.8
Critical
EPSS probability10.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Tenda AX12 firmware 22.03.01.21_cn allows remote attackers to obtain a root shell through setMacFilterCfg. The handler passes the deviceList form value to doSystem without command filtering, although the CVE description labels the defect a stack overflow. NVD treats the path as unauthenticated and network-reachable; successful exploitation executes commands with the router service's privileges.

The record

CVE
CVE-2022-28561
Published
May 3, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 3, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8NIST NVDCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1190Exploit Public-Facing Application

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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