CVE-2025-15253Public exploitNetwork attack vector

Authenticated memory corruption via unchecked strcpy

Published Dec 30, 2025 · Updated Dec 30, 2025

Stack-based buffer overflow in Tenda M3 1.0.0.13(4903) allows remote authenticated users to corrupt memory via cmdinput. The formexeCommand handler in /bin/httpd copies cmdinput with strcpy without sanitization or a destination-size bound. Low-privilege web access is required; oversized POST data can crash the controller or hijack its control flow.

CVSS severity8.8
High
EPSS probability0.72%
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 M3 1.0.0.13(4903) allows remote authenticated users to corrupt memory via cmdinput. The formexeCommand handler in /bin/httpd copies cmdinput with strcpy without sanitization or a destination-size bound. Low-privilege web access is required; oversized POST data can crash the controller or hijack its control flow.

The record

CVE
CVE-2025-15253
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
M3 Access Controller
Classifications
CWE-119, CWE-121, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 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=1.0.0.13(4903)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · M3 Access Controllerversion=1.0.0.13(4903)

Published CVSS scores

7.4VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
8.8VulDBCVSS:3.1/AV:N/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

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
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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