CVE-2023-37565

Authenticated code execution via crafted requests

Published Jul 13, 2023 · Updated Nov 7, 2024

Code injection in ELECOM WRC-1167 wireless router firmware allows remote authenticated users on the LAN to execute code via crafted requests. ELECOM and JPCERT/CC have not published the affected request field, handler, or the unsafe operation that turns its input into executable code. Successful exploitation requires management-interface credentials and LAN access and grants command execution in the router firmware context.

CVSS severity6.8
Medium
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in ELECOM WRC-1167 wireless router firmware allows remote authenticated users on the LAN to execute code via crafted requests. ELECOM and JPCERT/CC have not published the affected request field, handler, or the unsafe operation that turns its input into executable code. Successful exploitation requires management-interface credentials and LAN access and grants command execution in the router firmware context.

The record

CVE
CVE-2023-37565
Published
Jul 13, 2023
Updated
Nov 7, 2024
Vendor
ELECOM CO., LTD.
Product
WRC-1167FEBK-A
Classifications
CWE-94, T1059
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 7, 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

5.2JPCERT/CCAV:A/AC:L/Au:S/C:P/I:P/A:P
8.0NIST NVDCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.8JPCERT/CCCVSS:3.0/AV:A/AC:L/PR:H/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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code 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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