CVE-2024-36258Public exploitNetwork attack vector

Unauthenticated code execution via oversized sync response

Published Jan 14, 2025 · Updated Jan 14, 2025

Stack-based buffer overflow in Wavlink AC3000 M33A8.V5030.210505 allows remote attackers to execute arbitrary code via an HTTP request. The unauthenticated touchlist_sync.cgi handler fetches an attacker-controlled response, and touchlistsync() copies up to 0x481 bytes into 0x200-byte stack buffers with strcpy. Only network access is required; exploitation can take control of the router, while the published demonstration overwrites control flow and crashes the CGI process.

CVSS severity10.0
Critical
EPSS probability12.45%
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 Wavlink AC3000 M33A8.V5030.210505 allows remote attackers to execute arbitrary code via an HTTP request. The unauthenticated touchlist_sync.cgi handler fetches an attacker-controlled response, and touchlistsync() copies up to 0x481 bytes into 0x200-byte stack buffers with strcpy. Only network access is required; exploitation can take control of the router, while the published demonstration overwrites control flow and crashes the CGI process.

The record

CVE
CVE-2024-36258
Published
Jan 14, 2025
Updated
Jan 14, 2025
Vendor
Wavlink
Product
AC3000 Tri-band Wi-Fi Router
Classifications
CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 14, 2025Record 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=M33A8.V5030.210505

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Wavlink · AC3000 Tri-band Wi-Fi Routerversion=M33A8.V5030.210505

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0Cisco TalosCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

Public exploit references

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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