Vulnerability Monitor

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CVE-2021-44158


ASUS RT-AX56U Wi-Fi Router is vulnerable to stack-based buffer overflow due to improper validation for httpd parameter length. An authenticated local area network attacker can launch arbitrary code execution to control the system or disrupt service.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.0, indicating it requires adjacent network access with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 2 products from asus, from asus organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2022-01-03T10:15:08.190

Last Modified

2024-11-21T06:30:27.930

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.0 (HIGH)

CVSSv2 Vector

AV:A/AC:L/Au:S/C:C/I:C/A:C

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: LOW
  • Authentication: SINGLE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

5.1

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-121
  • Type: Primary
    CWE-1284

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System asus rt-ax56u_firmware 3.0.0.4.386.44266 Yes
Hardware asus rt-ax56u - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For asus's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.