CVE-2025-6110Public exploitNetwork attack vector

Authenticated memory corruption via unbounded page formatting

Published Jun 16, 2025 · Updated Jun 16, 2025

Stack-based buffer overflow in Tenda FH1201 firmware 1.2.0.14(408) allows remote authenticated users to corrupt memory via crafted page data. The fromSafeMacFilter function passes the POST page value to sprintf when constructing a URL in a fixed stack array without a length bound. A valid management session and network reachability are required, while the published proof of concept establishes delivery but no specific post-overflow result.

CVSS severity8.8
High
EPSS probability4.51%
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 FH1201 firmware 1.2.0.14(408) allows remote authenticated users to corrupt memory via crafted page data. The fromSafeMacFilter function passes the POST page value to sprintf when constructing a URL in a fixed stack array without a length bound. A valid management session and network reachability are required, while the published proof of concept establishes delivery but no specific post-overflow result.

The record

CVE
CVE-2025-6110
Published
Jun 16, 2025
Updated
Jun 16, 2025
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
FH1201
Classifications
CWE-787, CWE-121, CWE-119
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 16, 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 privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · FH1201version=1.2.0.14(408)

Published CVSS scores

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
9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C

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 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-787Out-of-bounds Write
CWE-121Stack-based Buffer Overflow
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

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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