CVE-2021-46109

Name: CVE-2021-46109
Creator: NVD / NIST
Published: 2022-01-03T15:15:09.097+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.70%

Last modified Jun 17, 2026

CVE-2021-46109 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Invalid input sanitizing leads to reflected Cross Site Scripting (XSS) in ASUS RT-AC52U_B1 3.0.0.4.380.10931 can lead to a user session hijack.. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

Invalid input sanitizing leads to reflected Cross Site Scripting (XSS) in ASUS RT-AC52U_B1 3.0.0.4.380.10931 can lead to a user session hijack.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.70%

48.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Asus	Rt-Ac52u B1 Firmware	3.0.0.4.380.10931

References

https://drive.google.com/drive/folders/1GAOuZwPB-upkpjPgjB8qLIKl9Mh3IVfl?usp=sharingExploit, Third Party Advisory
https://drive.google.com/drive/folders/1GAOuZwPB-upkpjPgjB8qLIKl9Mh3IVfl?usp=sharingExploit, Third Party Advisory

Timeline

Published: Jan 3, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-46109?

Invalid input sanitizing leads to reflected Cross Site Scripting (XSS) in ASUS RT-AC52U_B1 3.0.0.4.380.10931 can lead to a user session hijack.

How severe is CVE-2021-46109?

CVE-2021-46109 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2021-46109?

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-2021-46109?

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

Scan your code now

Source: NVD / NIST