CVE-2026-24465Network attack vector

Unauthenticated code execution via crafted packet

Published Feb 3, 2026 · Updated Feb 3, 2026

Stack-based buffer overflow in ELECOM WAB-S300IW and WAB-S733IW access points allows remote attackers to execute code via a crafted packet. Published advisories do not identify the packet type, parsing routine, or unchecked operation that overruns the stack buffer. Network access to an affected device is sufficient; no credentials or user interaction are required, and successful exploitation grants arbitrary code execution.

CVSS severity9.3
Critical
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in ELECOM WAB-S300IW and WAB-S733IW access points allows remote attackers to execute code via a crafted packet. Published advisories do not identify the packet type, parsing routine, or unchecked operation that overruns the stack buffer. Network access to an affected device is sufficient; no credentials or user interaction are required, and successful exploitation grants arbitrary code execution.

The record

CVE
CVE-2026-24465
Published
Feb 3, 2026
Updated
Feb 3, 2026
Vendor
ELECOM CO., LTD.
Product
WAB-S733IW-PD
Classifications
CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2026Record 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=all versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ELECOM CO., LTD. · WAB-S733IW-PDversion=all versions
ELECOM CO., LTD. · WAB-S300IW2-PDversion=v5.5.00 and earlier versions
ELECOM CO., LTD. · WAB-S733IW-ACversion=v5.5.00 and earlier versions
ELECOM CO., LTD. · WAB-S300IW-ACversion=v5.5.00 and earlier versions
ELECOM CO., LTD. · WAB-S300IW-PDversion=all versions
ELECOM CO., LTD. · WAB-S733IW2-PDversion=v5.5.00 and earlier versions

Published CVSS scores

9.3JPCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

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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