CVE-2023-31196Network attack vector

Administrative credential disclosure via missing authentication

Published Jun 13, 2023 · Updated Jan 3, 2025

Missing authentication in Inaba Denki Sangyo Wi-Fi AP UNIT firmware allows remote attackers to read administrative credentials. Inaba Denki Sangyo has not published the affected endpoint or the request-handling operation that omits authentication. Exploitation requires network access to the device and discloses credentials and other device-sensitive information without reported modification or service interruption.

CVSS severity7.5
High
EPSS probability0.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Inaba Denki Sangyo Wi-Fi AP UNIT firmware allows remote attackers to read administrative credentials. Inaba Denki Sangyo has not published the affected endpoint or the request-handling operation that omits authentication. Exploitation requires network access to the device and discloses credentials and other device-sensitive information without reported modification or service interruption.

The record

CVE
CVE-2023-31196
Published
Jun 13, 2023
Updated
Jan 3, 2025
Vendor
Inaba Denki Sangyo Co., Ltd.
Product
Wi-Fi AP UNIT
Classifications
CWE-306, T1552
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=AC-PD-WAPU v1.05_B04 and earlier, AC-PD-WAPUM v1.05_B04 and earlier, AC-PD-WAPU-P v1.05_B04P and earlier, AC-PD-WAPUM-P v1.05_B04P and earlier, AC-WAPU-300 v1.00_B07 and earlier, AC-WAPUM-300 v1.00_B07 and earlier, AC-WAPU-300-P v1.00_B07 and earlier, and AC-WAPUM-300-P v1.00_B07 and earlier

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Inaba Denki Sangyo Co., Ltd. · Wi-Fi AP UNITversion=AC-PD-WAPU v1.05_B04 and earlier, AC-PD-WAPUM v1.05_B04 and earlier, AC-PD-WAPU-P v1.05_B04P and earlier, AC-PD-WAPUM-P v1.05_B04P and earlier, AC-WAPU-300 v1.00_B07 and earlier, AC-WAPUM-300 v1.00_B07 and earlier, AC-WAPU-300-P v1.00_B07 and earlier, and AC-WAPUM-300-P v1.00_B07 and earlier

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0JPCERT/CCAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

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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