CVE-2023-38930Public exploitNetwork attack vector

Remote code execution via unchecked deviceId formatting

Published Aug 7, 2023 · Updated Oct 15, 2024

Stack overflow in Tenda AC5 15.03.06.28, AC7 15.03.06.44, and AC9 15.03.06.42_multi allows remote attackers to execute code via deviceId input. The /bin/httpd addWifiMacFilter handler passes the user-controlled value to sprintf without a length check, overflowing the stack buffer mib_value. The affected management endpoint is network-reachable without privileges or user interaction, and exploitation can execute code or crash the router.

CVSS severity9.8
Critical
EPSS probability0.84%
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 AC5 15.03.06.28, AC7 15.03.06.44, and AC9 15.03.06.42_multi allows remote attackers to execute code via deviceId input. The /bin/httpd addWifiMacFilter handler passes the user-controlled value to sprintf without a length check, overflowing the stack buffer mib_value. The affected management endpoint is network-reachable without privileges or user interaction, and exploitation can execute code or crash the router.

The record

CVE
CVE-2023-38930
Published
Aug 7, 2023
Updated
Oct 15, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC7
Classifications
CWE-787, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 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=F1203 V2.0.1.6,
  2. Affected versionversion=V1.0,V15.03.06.44

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC7version=F1203 V2.0.1.6,; version=V1.0,V15.03.06.44
Shenzhen Tenda Technology Co., Ltd. · AC9version=FH1205 V2.0.0.7(775); version=V3.0,V15.03.06.42_multi
Shenzhen Tenda Technology Co., Ltd. · AC5version=V1.0,V15.03.06.28

Published CVSS scores

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 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 exploitPublished

Weakness, pattern, technique

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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