CVE-2025-29214Public exploitNetwork attack vector

Authenticated service crash via unchecked deviceList copy

Published Mar 20, 2025 · Updated Mar 21, 2025

Stack-based buffer overflow in Tenda AX12 firmware 22.03.01.46_CN allows remote authenticated users to crash the web service. The sub_42F69C handler for /goform/setMacFilterCfg passes the deviceList request field to sub_42E410, which copies carriage-return-prefixed content into a 160-byte stack buffer without checking its length. The published proof of concept uses an authorized request with a password cookie; oversized input terminates the process with a segmentation fault, interrupting the service.

CVSS severity7.5
High
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Stack-based buffer overflow in Tenda AX12 firmware 22.03.01.46_CN allows remote authenticated users to crash the web service. The sub_42F69C handler for /goform/setMacFilterCfg passes the deviceList request field to sub_42E410, which copies carriage-return-prefixed content into a 160-byte stack buffer without checking its length. The published proof of concept uses an authorized request with a password cookie; oversized input terminates the process with a segmentation fault, interrupting the service.

The record

CVE
CVE-2025-29214
Published
Mar 20, 2025
Updated
Mar 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 21, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-121Stack-based Buffer Overflow
T1499.004Application or System Exploitation

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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