CVE-2025-25458Public exploitNetwork attack vector

Service crash via unbounded serverName2 copy

Published Apr 15, 2025 · Updated Apr 16, 2025

Stack buffer overflow in AdvSetMacMtuWan in Tenda AC10 V4.0si_V16.03.10.20 allows remote authenticated users to crash the HTTP service. The affected routine passes the serverName2 POST value to strcpy without checking whether it fits in the destination stack buffer. Reachability requires low-privileged access, user interaction, and wans.flag greater than zero; the demonstrated consequence is an httpd segmentation fault.

CVSS severity4.6
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack buffer overflow in AdvSetMacMtuWan in Tenda AC10 V4.0si_V16.03.10.20 allows remote authenticated users to crash the HTTP service. The affected routine passes the serverName2 POST value to strcpy without checking whether it fits in the destination stack buffer. Reachability requires low-privileged access, user interaction, and wans.flag greater than zero; the demonstrated consequence is an httpd segmentation fault.

The record

CVE
CVE-2025-25458
Published
Apr 15, 2025
Updated
Apr 16, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 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?

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

4.6CISA-ADPCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L

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 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 exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic 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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