CVE-2023-24334Public exploit

Authenticated command execution via unchecked stack copy

Published Feb 21, 2024 · Updated Aug 2, 2024

Stack-based buffer overflow in Tenda AC23 firmware 1.0re_v16.03.07.45_cn_tdc01 allows remote authenticated users to execute commands. The setSchedWifi handler copies the schedStartTime value directly into a stack buffer at ptr+2 without enforcing a size limit. Reachability requires adjacent-network access and a valid management session; successful exploitation runs commands with the router process's privileges.

CVSS severity8.0
High
EPSS probability0.49%
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 Tenda AC23 firmware 1.0re_v16.03.07.45_cn_tdc01 allows remote authenticated users to execute commands. The setSchedWifi handler copies the schedStartTime value directly into a stack buffer at ptr+2 without enforcing a size limit. Reachability requires adjacent-network access and a valid management session; successful exploitation runs commands with the router process's privileges.

The record

CVE
CVE-2023-24334
Published
Feb 21, 2024
Updated
Aug 2, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC23
Classifications
CWE-121, T1210
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=1.0re_v16.03.07.45_cn_tdc01

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC23version=1.0re_v16.03.07.45_cn_tdc01

Published CVSS scores

8.0CISA-ADPCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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 exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1210Exploitation of Remote Services

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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