CVE-2025-29135Public exploitNetwork attack vector

Unauthenticated code execution via unbounded security copy

Published Mar 24, 2025 · Updated Mar 26, 2025

Stack-based overflow in Tenda AC7 firmware 15.03.06.44 allows remote attackers to execute arbitrary code via a crafted Wi-Fi security value. formWifiBasicSet copies the unbounded security parameter into a fixed-size stack buffer with strcpy, overwriting adjacent stack data. The web request requires no authentication or user interaction, and successful exploitation grants code execution on the router.

CVSS severity9.8
Critical
EPSS probability1.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based overflow in Tenda AC7 firmware 15.03.06.44 allows remote attackers to execute arbitrary code via a crafted Wi-Fi security value. formWifiBasicSet copies the unbounded security parameter into a fixed-size stack buffer with strcpy, overwriting adjacent stack data. The web request requires no authentication or user interaction, and successful exploitation grants code execution on the router.

The record

CVE
CVE-2025-29135
Published
Mar 24, 2025
Updated
Mar 26, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 26, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

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 exploitPublished

Weakness, pattern, technique

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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