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CVE-2021-41435

CRITICALCVSS 9.8/10EPSS 5.99%

Last modified

CVE-2021-41435 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 5.99% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
5.99%

92.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AsusGt-Ax11000 Firmware< 3.0.0.4.386.45898
AsusRt-Ax3000 Firmware< 3.0.0.4.386.45898
AsusRt-Ax55 Firmware< 3.0.0.4.386.45898
AsusRt-Ax56u Firmware< 3.0.0.4.386.45898
AsusRt-Ax56u V2 Firmware< 3.0.0.4.386.45898
AsusRt-Ax58u Firmware< 3.0.0.4.386.45898
AsusRt-Ax82u Firmware< 3.0.0.4.386.45898
AsusRt-Ax82u Gundam Edition Firmware< 3.0.0.4.386.45898
AsusRt-Ax86u Firmware< 3.0.0.4.386.45898
AsusRt-Ax86s Firmware< 3.0.0.4.386.45898
AsusRt-Ax86u Zaku Ii Edition Firmware< 3.0.0.4.386.45898
AsusRt-Ax88u Firmware< 3.0.0.4.386.45898
AsusRt-Ax92u Firmware< 3.0.0.4.386.45898
AsusTuf Gaming Ax3000 Firmware< 3.0.0.4.386.45898
AsusTuf-Ax5400 Firmware< 3.0.0.4.386.45898
AsusZenwifi Xd6 Firmware< 3.0.0.4.386.45898
AsusZenwifi Ax \(Xt8\) Firmware< 3.0.0.4.386.45898
AsusRt-Ax68u Firmware< 3.0.0.4.386.45911

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-41435?
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.
How severe is CVE-2021-41435?
CVE-2021-41435 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 5.99% probability of exploitation in the next 30 days.
How do I fix CVE-2021-41435?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41435?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST