CVE-2025-29217Public exploitNetwork attack vector

Authenticated service crash via oversized wifiSSID

Published Mar 20, 2025 · Updated Jul 5, 2026

Stack-based buffer overflow in Tenda W18E v2.0 firmware 16.01.0.11 allows remote authenticated users to cause a service crash. The /goform/setModules handler fails to bound the wifiSSID value supplied in a crafted POST request, allowing it to overwrite a stack buffer. Network access with low privileges is required, and the documented consequence is service interruption rather than data disclosure or modification.

CVSS severity6.5
Medium
EPSS probability0.50%
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 W18E v2.0 firmware 16.01.0.11 allows remote authenticated users to cause a service crash. The /goform/setModules handler fails to bound the wifiSSID value supplied in a crafted POST request, allowing it to overwrite a stack buffer. Network access with low privileges is required, and the documented consequence is service interruption rather than data disclosure or modification.

The record

CVE
CVE-2025-29217
Published
Mar 20, 2025
Updated
Jul 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, T1498
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 5, 2026Record 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

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/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 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-121Stack-based Buffer Overflow
T1498Network Denial of Service

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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