CVE-2021-45679 Vulnerability Analysis & Exploit Details

CVE-2021-45679
Vulnerability Scoring

8.4
/10
Severe Risk

Cybersecurity professionals consider CVE-2021-45679 an immediate threat requiring urgent mitigation.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Adjacent_network
    Attack Vector Under Analysis
  • Privileges Required: High
    High-level privileges are required for exploitation.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2021-45679 Details

Status: Modified

Last updated: 🕡 21 Nov 2024, 06:32 UTC
Originally published on: 🕐 26 Dec 2021, 01:15 UTC

Time between publication and last update: 1061 days

CVSS Release: version 3

CVSS3 Source

cve@mitre.org

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVE-2021-45679 Vulnerability Summary

CVE-2021-45679: Certain NETGEAR devices are affected by privilege escalation. This affects R6900P before 1.3.3.140, R7000 before 1.0.11.126, R7000P before 1.3.3.140, and RS400 before 1.5.1.80.

Assessing the Risk of CVE-2021-45679

Access Complexity Graph

The exploitability of CVE-2021-45679 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2021-45679

The exploitability of CVE-2021-45679 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2021-45679, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2021-45679, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2021-45679 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2021-45679 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2021-45679 can disrupt system operations, potentially causing complete denial of service (DoS).

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.104% (probability of exploit)

EPSS Percentile: 44.61% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 55.39% of others.

CVE-2021-45679 References

External References

CWE Common Weakness Enumeration

NVD-CWE-noinfo

Vulnerable Configurations

  • cpe:2.3:o:netgear:r6900p_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.0.0.56:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.0.0.56:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.0.0.58:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.0.0.58:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.0.0.62:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.0.0.62:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.0.1.16:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.0.1.16:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.2.0.22:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.2.0.22:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.3.0.8:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.3.0.8:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.3.0.18:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.3.0.18:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.3.0.20:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.3.0.20:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.3.1.26:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.3.1.26:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.3.1.44:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.3.1.44:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.3.1.64:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.3.1.64:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.3.2.34:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.3.2.34:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.3.2.124:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.3.2.124:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.3.2.126:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.3.2.126:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.3.2.132:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.3.2.132:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r6900p_firmware:1.3.2.134:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r6900p_firmware:1.3.2.134:*:*:*:*:*:*:*
  • cpe:2.3:h:netgear:r6900p:-:*:*:*:*:*:*:*
    cpe:2.3:h:netgear:r6900p:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.7.10:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.7.10:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.7.2_1.1.93:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.7.2_1.1.93:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.4:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.4:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.6:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.6:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.10:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.10:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.12:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.12:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.14:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.14:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.18:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.18:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.26:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.26:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.28:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.28:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.32:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.32:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.34:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.34:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.42:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.42:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.60:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.60:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.9.88:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.9.88:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.11.100:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.11.100:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.11.106:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.11.106:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.11.110:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.11.110:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.11.116:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.11.116:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000_firmware:1.0.11.123:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000_firmware:1.0.11.123:*:*:*:*:*:*:*
  • cpe:2.3:h:netgear:r7000:-:*:*:*:*:*:*:*
    cpe:2.3:h:netgear:r7000:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.0.0.56:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.0.0.56:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.0.0.58:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.0.0.58:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.0.0.62:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.0.0.62:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.0.0.86:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.0.0.86:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.0.1.16:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.0.1.16:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.2.0.22:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.2.0.22:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.3.0.8:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.3.0.8:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.3.0.18:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.3.0.18:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.3.0.20:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.3.0.20:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.3.1.26:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.3.1.26:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.3.1.44:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.3.1.44:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.3.1.64:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.3.1.64:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.3.2.34:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.3.2.34:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.3.2.124:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.3.2.124:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.3.2.126:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.3.2.126:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.3.2.132:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.3.2.132:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.3.2.134:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.3.2.134:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:r7000p_firmware:1.3.2.126_10.1.66:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:r7000p_firmware:1.3.2.126_10.1.66:*:*:*:*:*:*:*
  • cpe:2.3:h:netgear:r7000p:-:*:*:*:*:*:*:*
    cpe:2.3:h:netgear:r7000p:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:rs400_firmware:-:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:rs400_firmware:-:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:rs400_firmware:1.5.0.48:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:rs400_firmware:1.5.0.48:*:*:*:*:*:*:*
  • cpe:2.3:o:netgear:rs400_firmware:1.5.0.68:*:*:*:*:*:*:*
    cpe:2.3:o:netgear:rs400_firmware:1.5.0.68:*:*:*:*:*:*:*
  • cpe:2.3:h:netgear:rs400:-:*:*:*:*:*:*:*
    cpe:2.3:h:netgear:rs400:-:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2021-45679: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other 5 Recently Published CVEs Vulnerabilities

  • CVE-2025-3275 – The Themesflat Addons For Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the TF E Slider widget in all versions up...
  • CVE-2025-1457 – The Element Pack Addons for Elementor – Free Templates and Widgets for Your WordPress Websites plugin for WordPress is vulnerable to Stored Cross-S...
  • CVE-2025-1093 – The AIHub theme for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the generate_image function in all ver...
  • CVE-2025-3284 – The User Registration & Membership – Custom Registration Form, Login Form, and User Profile plugin for WordPress is vulnerable to Cross-Site Reques...
  • CVE-2025-3278 – The UrbanGo Membership plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 1.0.4. This is due to the plugi...