CVE-2025-7586Public exploitNetwork attack vector

Authenticated code execution via unchecked strcpy

Published Jul 14, 2025 · Updated Jul 14, 2025

Stack-based buffer overflow in Tenda AC500 2.0.1.9(1307) allows remote authenticated users to execute code via radio_2g_1. Within formSetAPCfg at /goform/setWtpData, strcpy copies the user-controlled value into the stack buffer s_1 without checking its length. Access requires low privileges on the web management service, and an oversized value can also crash the controller.

CVSS severity8.8
High
EPSS probability1.05%
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 AC500 2.0.1.9(1307) allows remote authenticated users to execute code via radio_2g_1. Within formSetAPCfg at /goform/setWtpData, strcpy copies the user-controlled value into the stack buffer s_1 without checking its length. Access requires low privileges on the web management service, and an oversized value can also crash the controller.

The record

CVE
CVE-2025-7586
Published
Jul 14, 2025
Updated
Jul 14, 2025
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC500
Classifications
CWE-119, CWE-121, CWE-787, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 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=2.0.1.9(1307)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC500version=2.0.1.9(1307)

Published CVSS scores

8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
CWE-787Out-of-bounds Write
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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