CVE-2025-4810Public exploitNetwork attack vector

Authenticated memory corruption via reboot timer parsing

Published May 16, 2025 · Updated May 17, 2025

Stack-based buffer overflow in Tenda AC7 15.03.06.44 allows remote authenticated users to corrupt memory through reboot timer settings. The formSetRebootTimer handler passes the user-controlled rebootTime POST parameter to sscanf with the %d:%d format and stores the results in stack-resident end_hour and end_min variables without validating the input. Access to the web management interface is required, and exploitation can compromise router confidentiality, integrity, and availability.

CVSS severity8.8
High
EPSS probability1.01%
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 AC7 15.03.06.44 allows remote authenticated users to corrupt memory through reboot timer settings. The formSetRebootTimer handler passes the user-controlled rebootTime POST parameter to sscanf with the %d:%d format and stores the results in stack-resident end_hour and end_min variables without validating the input. Access to the web management interface is required, and exploitation can compromise router confidentiality, integrity, and availability.

The record

CVE
CVE-2025-4810
Published
May 16, 2025
Updated
May 17, 2025
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC7
Classifications
CWE-121, CWE-787, CWE-119, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 16, 2025CVE publishedPublication date reported by the CVE source.
  2. May 17, 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=15.03.06.44

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC7version=15.03.06.44

Published CVSS scores

8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
8.7VulDBCVSS: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:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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