CVE-2024-46652Public exploitNetwork attack vector

Remote code execution via unchecked WAN parameter copies

Published Sep 20, 2024 · Updated Sep 23, 2024

Stack overflow in Tenda AC8 v4 firmware 16.03.34.06 allows remote attackers to execute arbitrary code via a crafted WAN-settings POST. The fromAdvSetMacMtuWan path copies attacker-controlled wanMTU, wanSpeed, cloneType, MAC, serviceName, and serverName values with strcpy into a fixed-size stack array. The unauthenticated HTTP management endpoint is network-reachable, while reliable ROP execution depends on matching firmware library addresses and router runtime state.

CVSS severity9.8
Critical
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in Tenda AC8 v4 firmware 16.03.34.06 allows remote attackers to execute arbitrary code via a crafted WAN-settings POST. The fromAdvSetMacMtuWan path copies attacker-controlled wanMTU, wanSpeed, cloneType, MAC, serviceName, and serverName values with strcpy into a fixed-size stack array. The unauthenticated HTTP management endpoint is network-reachable, while reliable ROP execution depends on matching firmware library addresses and router runtime state.

The record

CVE
CVE-2024-46652
Published
Sep 20, 2024
Updated
Sep 23, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
Tenda AC8 Firmware
Classifications
CWE-120, CWE-787, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 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=16.03.34.06

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · Tenda AC8 Firmwareversion=16.03.34.06

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/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 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-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-787Out-of-bounds Write
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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