CVE-2023-34570Public exploit

Service interruption via oversized device-name input

Published Jun 8, 2023 · Updated Jan 6, 2025

Stack overflow in Tenda AC10 v4 firmware US_AC10V4.0si_V16.03.10.13_cn allows local users to interrupt service via devName. The SetOnlineDevName handler accepts attacker-controlled devName data that exceeds a stack buffer; the exact copy operation is undisclosed. Exploitation requires high privileges and no user interaction, and successful triggering can corrupt memory and interrupt router services.

CVSS severity6.7
Medium
EPSS probability0.32%
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 local users to interrupt service via devName. The SetOnlineDevName handler accepts attacker-controlled devName data that exceeds a stack buffer; the exact copy operation is undisclosed. Exploitation requires high privileges and no user interaction, and successful triggering can corrupt memory and interrupt router services.

The record

CVE
CVE-2023-34570
Published
Jun 8, 2023
Updated
Jan 6, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499
Attack vector
local
Privileges
admin

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 vectorlocal
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.7CISA ADP VulnrichmentCVSS:3.1/AV:L/AC:L/PR:H/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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499Endpoint Denial of Service

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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