CVE-2024-34021

Administrator command execution via crafted file upload

Published Aug 1, 2024 · Updated May 12, 2026

Dangerous file upload in ELECOM wireless LAN routers allows remote authenticated users to execute arbitrary OS commands. Public advisories identify a crafted-file upload but do not disclose the upload endpoint, validation failure, or command-execution path. Administrative access from an adjacent network is required, and successful exploitation grants command execution on the router.

CVSS severity6.8
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Dangerous file upload in ELECOM wireless LAN routers allows remote authenticated users to execute arbitrary OS commands. Public advisories identify a crafted-file upload but do not disclose the upload endpoint, validation failure, or command-execution path. Administrative access from an adjacent network is required, and successful exploitation grants command execution on the router.

The record

CVE
CVE-2024-34021
Published
Aug 1, 2024
Updated
May 12, 2026
Vendor
ELECOM CO., LTD.
Product
WRC-2533GS2-W Firmware
Classifications
CWE-434, T1059
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Aug 1, 2024CVE publishedPublication date reported by the CVE source.
  2. May 12, 2026Record 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=0 <=1.68

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

ELECOM CO., LTD. · WRC-2533GS2-W Firmwareversion=0 <=1.68
ELECOM CO., LTD. · WRC-2533GS2-Wversion=v1.68 and earlier
ELECOM CO., LTD. · WRC-2533GST2 Firmwareversion=0 <=1.30
ELECOM CO., LTD. · WRC-1167GS2H-Bversion=v1.74 and earlier
ELECOM CO., LTD. · WRC-G01-Wversion=v1.26 and earlier
ELECOM CO., LTD. · WRC-2533GS2V-Bversion=v1.68 and earlier
ELECOM CO., LTD. · WRC-2533GS2-Bversion=v1.68 and earlier
ELECOM CO., LTD. · WMC-2LX-Bversion=v1.42 and earlier
ELECOM CO., LTD. · WRC-2533GS2V-B Firmwareversion=0 <=1.68
ELECOM CO., LTD. · WRC-2533GS2-B Firmwareversion=0 <=1.68
ELECOM CO., LTD. · WRC-2533GST2version=v1.30 and earlier
ELECOM CO., LTD. · WRC-1167GST2version=v1.32 and earlier
ELECOM CO., LTD. · WMC-X1800GST-Bversion=v1.42 and earlier
ELECOM CO., LTD. · WRC-1167GS2-Bversion=v1.74 and earlier
ELECOM CO., LTD. · WRC-X3200GST3-Bversion=v1.27 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

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1059Command and Scripting Interpreter

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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