CVE-2023-51958Network attack vector

Unauthenticated code execution via unchecked IPTV parameter

Published Jan 10, 2024 · Updated Oct 1, 2024

Stack-based buffer overflow in Tenda AX1803 1.0.0.1 allows remote attackers to execute code via the iptv.stb.port parameter. The formGetIptv handler fails to validate the parameter length before copying it into a fixed-size stack buffer, allowing an oversized value to overwrite adjacent stack data. No authentication or user interaction is required; a crafted network request can corrupt memory, crash the router, or redirect execution.

CVSS severity9.8
Critical
EPSS probability0.70%
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 AX1803 1.0.0.1 allows remote attackers to execute code via the iptv.stb.port parameter. The formGetIptv handler fails to validate the parameter length before copying it into a fixed-size stack buffer, allowing an oversized value to overwrite adjacent stack data. No authentication or user interaction is required; a crafted network request can corrupt memory, crash the router, or redirect execution.

The record

CVE
CVE-2023-51958
Published
Jan 10, 2024
Updated
Oct 1, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AX1803
Classifications
CWE-787, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 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=1.0.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AX1803version=1.0.0.1

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS: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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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