What is the CVSS score of CVE-2021-41435?

CVE-2021-41435 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 6.0%.

Gt Ax11000 Firmware CVE-2021-41435

CRITICAL

Improper Restriction of Excessive Authentication Attempts (CWE-307)

2021-11-19 cve@mitre.org

Authentication Bypass Gt Ax11000 Firmware Rt Ax3000 Firmware Rt Ax55 Firmware Rt Ax56U Firmware Rt Ax56U V2 Firmware Rt Ax58U Firmware Rt Ax82U Firmware Rt Ax82U Gundam Edition Firmware Rt Ax86U Firmware Rt Ax86S Firmware Rt Ax86U Zaku Ii Edition Firmware Rt Ax88U Firmware Rt Ax92U Firmware Tuf Gaming Ax3000 Firmware Tuf Ax5400 Firmware Zenwifi Xd6 Firmware Zenwifi Ax Xt8 Firmware Rt Ax68U Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Nov 19, 2021 - 12:15 nvd

CRITICAL 9.8

DescriptionNVD

A brute-force protection bypass in CAPTCHA protection in ASUS ROG Rapture GT-AX11000, RT-AX3000, RT-AX55, RT-AX56U, RT-AX56U_V2, RT-AX58U, RT-AX82U, RT-AX82U GUNDAM EDITION, RT-AX86 Series(RT-AX86U/RT-AX86S), RT-AX86U ZAKU II EDITION, RT-AX88U, RT-AX92U, TUF Gaming AX3000, TUF Gaming AX5400 (TUF-AX5400), ASUS ZenWiFi XD6, ASUS ZenWiFi AX (XT8) before 3.0.0.4.386.45898, and RT-AX68U before 3.0.0.4.386.45911, allows a remote attacker to attempt any number of login attempts via sending a specific HTTP request.

AnalysisAI

A brute-force protection bypass in CAPTCHA protection in ASUS ROG Rapture GT-AX11000, RT-AX3000, RT-AX55, RT-AX56U, RT-AX56U_V2, RT-AX58U, RT-AX82U, RT-AX82U GUNDAM EDITION, RT-AX86. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-307. A brute-force protection bypass in CAPTCHA protection in ASUS ROG Rapture GT-AX11000, RT-AX3000, RT-AX55, RT-AX56U, RT-AX56U_V2, RT-AX58U, RT-AX82U, RT-AX82U GUNDAM EDITION, RT-AX86 Series(RT-AX86U/RT-AX86S), RT-AX86U ZAKU II EDITION, RT-AX88U, RT-AX92U, TUF Gaming AX3000, TUF Gaming AX5400 (TUF-AX5400), ASUS ZenWiFi XD6, ASUS ZenWiFi AX (XT8) before 3.0.0.4.386.45898, and RT-AX68U before 3.0.0.4.386.45911, allows a remote attacker to attempt any number of login attempts via sending a specific HTTP request. Affected products include: Asus Gt-Ax11000 Firmware, Asus Rt-Ax3000 Firmware, Asus Rt-Ax55 Firmware, Asus Rt-Ax56U Firmware, Asus Rt-Ax56U V2 Firmware. Version information: before 3.0.0.4.386.45898.

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.