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Xr1000 Firmware CVE-2021-45518

MEDIUM
2021-12-26 cve@mitre.org
6.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: adjacent network attack vector, low complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAI

NETGEAR XR1000 devices before 1.0.0.58 are affected by denial of service. Rated medium severity (CVSS 6.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

NETGEAR XR1000 devices before 1.0.0.58 are affected by denial of service. Affected products include: Netgear Xr1000 Firmware. Version information: before 1.0.0.58.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionNVD

NETGEAR XR1000 devices before 1.0.0.58 are affected by denial of service.

Threat Intelligence Overview

EPSS Score
0.4%
Top 71% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Controlled
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:o:netgear:xr1000_firmware:*:*:*:*:*:*:*:*
CVE-2021-45622 CRITICAL
9.8 Dec 26

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS

CVE-2021-45621 CRITICAL
9.8 Dec 26

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS

CVE-2021-45620 CRITICAL
9.8 Dec 26

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS

CVE-2021-45616 CRITICAL
9.8 Dec 26

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS

CVE-2021-45614 CRITICAL
9.8 Dec 26

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS

CVE-2021-45613 CRITICAL
9.8 Dec 26

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS

CVE-2021-45612 CRITICAL
9.8 Dec 26

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS

CVE-2021-45513 CRITICAL
9.6 Dec 26

NETGEAR XR1000 devices before 1.0.0.58 are affected by command injection by an unauthenticated attacker. Rated critical

CVE-2021-45522 HIGH
8.8 Dec 26

NETGEAR XR1000 devices before 1.0.0.58 are affected by a hardcoded password. Rated high severity (CVSS 8.8), this vulner

CVE-2021-45514 HIGH
8.8 Dec 26

NETGEAR XR1000 devices before 1.0.0.58 are affected by command injection by an unauthenticated attacker. Rated high seve

CVE-2021-45510 HIGH
8.8 Dec 26

NETGEAR XR1000 devices before 1.0.0.58 are affected by authentication bypass. Rated high severity (CVSS 8.8), this vulne

CVE-2021-45654 HIGH
7.5 Dec 26

NETGEAR XR1000 devices before 1.0.0.58 are affected by disclosure of sensitive information. Rated high severity (CVSS 7.

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