CVE-2025-7418Public exploitNetwork attack vector

Authenticated service crash via unchecked stack copy

Published Jul 10, 2025 · Updated Jul 11, 2025

Stack-based buffer overflow in Tenda O3V2 1.0.0.12(3880) allows remote authenticated users to crash the device via a crafted destIP value. The httpd fromPingResultGet function copies the unchecked destIP parameter from POST /goform/setPing into a stack-local buffer, overwriting the return address. Access to the web administration session is required; the demonstrated consequence is persistent loss of router services, while the report also asserts control-flow hijacking.

CVSS severityUnavailable
Unscored
EPSS probability0.82%
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 O3V2 1.0.0.12(3880) allows remote authenticated users to crash the device via a crafted destIP value. The httpd fromPingResultGet function copies the unchecked destIP parameter from POST /goform/setPing into a stack-local buffer, overwriting the return address. Access to the web administration session is required; the demonstrated consequence is persistent loss of router services, while the report also asserts control-flow hijacking.

The record

CVE
CVE-2025-7418
Published
Jul 10, 2025
Updated
Jul 11, 2025
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
O3
Classifications
CWE-119, CWE-121, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 11, 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=1.0.0.12(3880)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · O3version=1.0.0.12(3880)

Published CVSS scores

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 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-119Improper Restriction of Operations within the Bounds of a Memory Buffer
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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