CVE-2023-37564

Authenticated root command execution via crafted requests

Published Jul 13, 2023 · Updated Nov 6, 2024

OS command injection in five ELECOM WRC-1167 router models allows remote authenticated users to execute commands as root. ELECOM and JVN disclose only a specially crafted request; neither identifies the request handler, affected parameter, or unsafe shell invocation. Exploitation requires authenticated access from the adjacent local network and grants root-level control of the router.

CVSS severity8.0
High
EPSS probability0.92%
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 five ELECOM WRC-1167 router models allows remote authenticated users to execute commands as root. ELECOM and JVN disclose only a specially crafted request; neither identifies the request handler, affected parameter, or unsafe shell invocation. Exploitation requires authenticated access from the adjacent local network and grants root-level control of the router.

The record

CVE
CVE-2023-37564
Published
Jul 13, 2023
Updated
Nov 6, 2024
Vendor
ELECOM CO., LTD.
Product
WRC-1167FEBK-A
Classifications
CWE-78, T1059
Attack vector
adjacent
Privileges
authenticated

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

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <=1.18
  2. Affected versionversion=v1.18 and earlier

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

ELECOM CO., LTD. · WRC-1167FEBK-Aversion=0 <=1.18; version=v1.18 and earlier
ELECOM CO., LTD. · WRC-1167GHBK3-Aversion=0 <=1.24; version=v1.24 and earlier
ELECOM CO., LTD. · WRC-1167GEBK-Sversion=0 <=1.03; version=v1.03 and earlier
ELECOM CO., LTD. · WRC-1167FEBK-Sversion=0 <=1.04; version=v1.04 and earlier
ELECOM CO., LTD. · WRC-1167GHBK-Sversion=0 <=1.03; version=v1.03 and earlier

Published CVSS scores

6.8JPCERT/CC and IPACVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.7JPCERT/CC and IPAAV:A/AC:L/Au:S/C:C/I:C/A:C
8.0NIST NVDCVSS:3.1/AV:A/AC:L/PR:L/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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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