CVE-2021-44158

ASUS RT-AX56U Router - Stack-based buffer overflow

View on CVE.org

Published Jan 3, 2022 CVSS 3.1 · 8 High EPSS < 1% KEV · Not listed

Description

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

ASUS

RT-AX56U

affected

Version	Status	Constraints
`3.0.0.4.386.44266`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:asus:rt-ax56u_firmware:3.0.0.4.386.44266:*:*:*:*:*:*:*

cpe:2.3:h:asus:rt-ax56u:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

Vendor Solution

ASUS RT-AX56U firmware update version to 3.0.0.4.386.45898

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-31008	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.

Metrics

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Adjacent Network

Access Complexity Low

Authentication Single

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.699% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://www.twcert.org.tw/tw/cp-132-5431-d23be-1.html

History

No history.

Subscriptions

Asus Rt-ax56u Rt-ax56u Firmware

Weaknesses

Sources

CVE record Updated: Sep 16, 2024, 4:52 PM

Status: PUBLISHED
Assigner: twcert
Published: Jan 3, 2022, 10:10 AM
Updated: Sep 16, 2024, 4:52 PM
Reserved: Nov 23, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:11 AM

Status: Modified
Published: Jan 3, 2022, 10:15 AM
Modified: Jun 17, 2026, 4:11 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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