CVE-2022-45516Public exploitNetwork attack vector

Router crash via unchecked sprintf of page parameter

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 via an HTTP request. The /goform/NatStaticSetting handler passes the untrusted page value to sprintf without checking its length, overflowing a stack buffer. The public proof of concept authenticates as an administrator before sending the oversized value; CISA's CVSS assessment instead marks privileges as unnecessary.

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 via an HTTP request. The /goform/NatStaticSetting handler passes the untrusted page value to sprintf without checking its length, overflowing a stack buffer. The public proof of concept authenticates as an administrator before sending the oversized value; CISA's CVSS assessment instead marks privileges as unnecessary.

The record

CVE
CVE-2022-45516
Published
Dec 8, 2022
Updated
Apr 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499.004
Attack vector
network
Privileges
Unavailable

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 privilegesUnavailable in this record.

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
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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