CVE-2025-32010Network attack vector

Remote code execution via unchecked cloud response copy

Published Aug 20, 2025 · Updated Nov 3, 2025

Stack-based buffer overflow in the Tenda AC6 V5.0 Cloud API at V02.03.01.110 allows remote attackers to execute arbitrary code. The look_through_cloud_list function uses strcpy to copy a cloud-controlled JSON result into smaller fixed-size stack buffers without a length check. Exploitation requires interception or impersonation of the router's cleartext cloud service while at least one client is connected.

CVSS severity8.1
High
EPSS probability0.69%
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 the Tenda AC6 V5.0 Cloud API at V02.03.01.110 allows remote attackers to execute arbitrary code. The look_through_cloud_list function uses strcpy to copy a cloud-controlled JSON result into smaller fixed-size stack buffers without a length check. Exploitation requires interception or impersonation of the router's cleartext cloud service while at least one client is connected.

The record

CVE
CVE-2025-32010
Published
Aug 20, 2025
Updated
Nov 3, 2025
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC6
Classifications
CWE-121, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 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=V02.03.01.110

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC6version=V02.03.01.110

Published CVSS scores

8.1Cisco TalosCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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.

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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-121Stack-based Buffer Overflow
T1203Exploitation for Client Execution

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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