CVE-2021-45660

Unspecified impact via server-side injection

Published Dec 26, 2021 · Updated Aug 4, 2024

Server-side injection in NETGEAR Orbi WiFi systems before fixed firmware versions allows attackers unspecified impact via unspecified vectors. NETGEAR identifies a server-side injection condition affecting firmware on ten Orbi models but does not publish the vulnerable endpoint, parameter, or unsafe operation that processes attacker-controlled input. The advisory and NVD record do not establish an authentication gate, network position, user interaction requirement, or specific confidentiality, integrity, or availability consequence beyond the injection description.

CVSS severity7.8
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side injection in NETGEAR Orbi WiFi systems before fixed firmware versions allows attackers unspecified impact via unspecified vectors. NETGEAR identifies a server-side injection condition affecting firmware on ten Orbi models but does not publish the vulnerable endpoint, parameter, or unsafe operation that processes attacker-controlled input. The advisory and NVD record do not establish an authentication gate, network position, user interaction requirement, or specific confidentiality, integrity, or availability consequence beyond the injection description.

The record

CVE
CVE-2021-45660
Published
Dec 26, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-74
Attack vector
Unavailable
Privileges
Unavailable

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

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.1NETGEARCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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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