CVE-2023-34566Public exploitNetwork attack vector

Router crash via oversized parental-control time parameter

Published Jun 8, 2023 · Updated Jan 6, 2025

Stack overflow in Tenda AC10 v4 firmware US_AC10V4.0si_V16.03.10.13_cn allows remote attackers to crash the router via a crafted request. The /goform/saveParentControlInfo handler writes an oversized time parameter beyond the bounds of a stack buffer. No authentication or user interaction is required, and exploitation interrupts service on the affected router.

CVSS severity9.8
Critical
EPSS probability0.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in Tenda AC10 v4 firmware US_AC10V4.0si_V16.03.10.13_cn allows remote attackers to crash the router via a crafted request. The /goform/saveParentControlInfo handler writes an oversized time parameter beyond the bounds of a stack buffer. No authentication or user interaction is required, and exploitation interrupts service on the affected router.

The record

CVE
CVE-2023-34566
Published
Jun 8, 2023
Updated
Jan 6, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 6, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499.004Application or System Exploitation

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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