CVE-2026-6122Network attack vector

Authenticated device compromise via unchecked page parameter

Published Apr 12, 2026 · Updated Apr 12, 2026

Stack-based buffer overflow in Tenda F451 1.0.0.7 allows remote authenticated users to compromise the device via a crafted HTTP request. The frmL7ProtForm function in httpd processes the page parameter at /goform/L7Prot without enforcing the destination stack buffer's bounds. Low-privileged network access is required; the public record does not specify whether exploitation crashes httpd or enables code execution.

CVSS severity8.8
High
EPSS probability0.54%
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 Tenda F451 1.0.0.7 allows remote authenticated users to compromise the device via a crafted HTTP request. The frmL7ProtForm function in httpd processes the page parameter at /goform/L7Prot without enforcing the destination stack buffer's bounds. Low-privileged network access is required; the public record does not specify whether exploitation crashes httpd or enables code execution.

The record

CVE
CVE-2026-6122
Published
Apr 12, 2026
Updated
Apr 12, 2026
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
F451
Classifications
CWE-121, CWE-119, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 12, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · F451version=1.0.0.7

Published CVSS scores

9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.4VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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