CVE-2022-45508Public exploitNetwork attack vector

Router crash via unchecked new_account concatenation

Published Dec 8, 2022 · Updated Apr 23, 2025

Stack-based buffer overflow in Tenda W30E firmware 1.0.1.25(633) allows remote attackers to crash the router through new_account. The /goform/editUserName handler appends the new_account value to a stack buffer with strcat without checking its size. The published proof of concept logs in with administrative credentials before triggering the crash, although CISA assesses no privileges as required; reliable code execution is not demonstrated.

CVSS severity7.5
High
EPSS probability0.86%
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 W30E firmware 1.0.1.25(633) allows remote attackers to crash the router through new_account. The /goform/editUserName handler appends the new_account value to a stack buffer with strcat without checking its size. The published proof of concept logs in with administrative credentials before triggering the crash, although CISA assesses no privileges as required; reliable code execution is not demonstrated.

The record

CVE
CVE-2022-45508
Published
Dec 8, 2022
Updated
Apr 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 8, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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
T1499.004Endpoint Denial of Service: Application 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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