CVE-2021-45497Network attack vector

Unauthenticated access to protected router functions

Published Dec 26, 2021 · Updated Aug 4, 2024

Authentication bypass in NETGEAR D7000 firmware before 1.0.1.82 allows remote attackers to access protected router functions. NETGEAR has not published the affected firmware component, request path, or authentication check that accepts untrusted input. No credentials or user interaction are required; successful exploitation permits reading and changing protected data and interrupting service.

CVSS severity9.4
Critical
EPSS probability1.87%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in NETGEAR D7000 firmware before 1.0.1.82 allows remote attackers to access protected router functions. NETGEAR has not published the affected firmware component, request path, or authentication check that accepts untrusted input. No credentials or user interaction are required; successful exploitation permits reading and changing protected data and interrupting service.

The record

CVE
CVE-2021-45497
Published
Dec 26, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 26, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

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

9.8NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.4MITRECVSS:3.1/AC:L/AV:N/A:L/C:H/I:H/PR:N/S:U/UI:N
10.0NISTAV:N/AC:L/Au:N/C:C/I:C/A:C
9.4NETGEARCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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