CVE-2023-37563

Unauthenticated sensitive information disclosure from LAN

Published Jul 13, 2023 · Updated Nov 6, 2024

Information disclosure in ELECOM WRC wireless LAN routers allows network-adjacent attackers to obtain sensitive information without authentication. ELECOM has not published the affected interface, data source, request, or operation that exposes the information. Exploitation requires access from the LAN side; the published impact is limited to reading sensitive information, with no reported modification or service interruption.

CVSS severity6.5
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Information disclosure in ELECOM WRC wireless LAN routers allows network-adjacent attackers to obtain sensitive information without authentication. ELECOM has not published the affected interface, data source, request, or operation that exposes the information. Exploitation requires access from the LAN side; the published impact is limited to reading sensitive information, with no reported modification or service interruption.

The record

CVE
CVE-2023-37563
Published
Jul 13, 2023
Updated
Nov 6, 2024
Vendor
ELECOM CO., LTD.
Product
WRC-1167FEBK-A
Classifications
CWE-200, CWE-922
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 6, 2024Record 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=v1.18 and earlier

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

ELECOM CO., LTD. · WRC-1167FEBK-Aversion=v1.18 and earlier
ELECOM CO., LTD. · WRC-600GHBK-Aversion=all versions
ELECOM CO., LTD. · WRC-1900GHBK-Sversion=all versions
ELECOM CO., LTD. · WRC-1900GHBK-Aversion=all versions
ELECOM CO., LTD. · WRC-1167GHBK3-Aversion=v1.24 and earlier
ELECOM CO., LTD. · WRC-1167GEBK-Sversion=v1.03 and earlier
ELECOM CO., LTD. · WRC-733FEBK2-Aversion=all versions
ELECOM CO., LTD. · WRC-F1167ACF2version=all versions
ELECOM CO., LTD. · WRC-1167FEBK-Sversion=v1.04 and earlier
ELECOM CO., LTD. · WRC-1467GHBK-Aversion=all versions
ELECOM CO., LTD. · WRC-1467GHBK-Sversion=all versions
ELECOM CO., LTD. · WRC-1167GHBK-Sversion=v1.03 and earlier

Published CVSS scores

6.5JPCERT/CC and IPACVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.5NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.3JPCERT/CC and IPAAV:A/AC:L/Au:N/C:P/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-922Insecure Storage of Sensitive Information

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo