CVE-2025-3236Public exploitNetwork attack vector

Unauthorized DMZ changes via unchecked VirSerDMZ requests

Published Apr 4, 2025 · Updated Apr 4, 2025

Improper access control in the Tenda FH1202 1.2.0.14(408) web interface allows remote attackers to alter DMZ settings. The /goform/VirSerDMZ handler accepts a crafted HTTP request without enforcing the intended authorization check, but public material does not identify the affected function or request fields. No authentication or user interaction is required, and the documented consequence is limited to unauthorized configuration changes rather than data disclosure or service interruption.

CVSS severity6.9
Medium
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in the Tenda FH1202 1.2.0.14(408) web interface allows remote attackers to alter DMZ settings. The /goform/VirSerDMZ handler accepts a crafted HTTP request without enforcing the intended authorization check, but public material does not identify the affected function or request fields. No authentication or user interaction is required, and the documented consequence is limited to unauthorized configuration changes rather than data disclosure or service interruption.

The record

CVE
CVE-2025-3236
Published
Apr 4, 2025
Updated
Apr 4, 2025
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
FH1202
Classifications
CWE-266, CWE-284, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 4, 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=1.2.0.14(408)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · FH1202version=1.2.0.14(408)

Published CVSS scores

5.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
5.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-266Incorrect Privilege Assignment
CWE-284Improper Access Control
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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