CVE-2022-44200Public exploitNetwork attack vector

Memory corruption via oversized station-mode DNS fields

Published Nov 22, 2022 · Updated Apr 29, 2025

Buffer overflow in NETGEAR R7000P firmware 1.3.0.8 and 1.3.1.64 allows remote authenticated users to corrupt memory via crafted DNS fields. The firmware mishandles oversized stamode_dns1_pri and stamode_dns1_sec values, but public records do not identify the receiving function or exact copy operation. Exploitation requires the router's Wi-Fi password or an Ethernet connection, and the documented consequence is memory corruption with confidentiality, integrity, and availability impact.

CVSS severity8.0
High
EPSS probability0.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in NETGEAR R7000P firmware 1.3.0.8 and 1.3.1.64 allows remote authenticated users to corrupt memory via crafted DNS fields. The firmware mishandles oversized stamode_dns1_pri and stamode_dns1_sec values, but public records do not identify the receiving function or exact copy operation. Exploitation requires the router's Wi-Fi password or an Ethernet connection, and the documented consequence is memory corruption with confidentiality, integrity, and availability impact.

The record

CVE
CVE-2022-44200
Published
Nov 22, 2022
Updated
Apr 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 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 privilegesauthenticated

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
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.0NETGEARCVSS:3.0/AV:N/AC:L/PR:L/UI:R/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1190Exploit Public-Facing Application

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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