CVE-2022-45640Public exploitNetwork attack vector

Service crash via unchecked security parameter copy

Published Dec 1, 2022 · Updated Apr 24, 2025

Stack buffer overflow in Tenda AC6 v1.0 firmware 15.03.05.19 allows remote attackers to crash the router via a crafted POST request. The /goform/WifiBasicSet handler passes the security parameter to strcpy without checking its length, overflowing a stack-local buffer and overwriting the return address. No credentials or user interaction are required; the demonstrated consequence is a denial-of-service crash rather than code execution.

CVSS severity7.5
High
EPSS probability1.02%
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 Tenda AC6 v1.0 firmware 15.03.05.19 allows remote attackers to crash the router via a crafted POST request. The /goform/WifiBasicSet handler passes the security parameter to strcpy without checking its length, overflowing a stack-local buffer and overwriting the return address. No credentials or user interaction are required; the demonstrated consequence is a denial-of-service crash rather than code execution.

The record

CVE
CVE-2022-45640
Published
Dec 1, 2022
Updated
Apr 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 1, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 24, 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
7.5NVDCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
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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