CVE-2022-36556Public exploitNetwork attack vector

Authenticated root command execution via ping parameter

Published Aug 29, 2022 · Updated Aug 3, 2024

OS command injection in Seiko SkyBridge MB-A100/A110 4.2.0 and earlier allows remote authenticated users to execute shell commands as root. The 07system08execute_ping_01.cgi WebUI ping handler accepts shell syntax in the ipAddress POST parameter and passes it to the operating system. Administrative WebUI access, including access through unchanged default credentials, is required; successful injection grants root-level command execution.

CVSS severity9.8
Critical
EPSS probability1.59%
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 Seiko SkyBridge MB-A100/A110 4.2.0 and earlier allows remote authenticated users to execute shell commands as root. The 07system08execute_ping_01.cgi WebUI ping handler accepts shell syntax in the ipAddress POST parameter and passes it to the operating system. Administrative WebUI access, including access through unchanged default credentials, is required; successful injection grants root-level command execution.

The record

CVE
CVE-2022-36556
Published
Aug 29, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 29, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('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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