CVE-2021-41437
An HTTP response splitting attack in web application in ASUS RT-AX88U before v3.0.0.4.388.20558 allows an attacker to craft a specific URL that if an authenticated victim visits it, the URL will give access to the cloud storage of the attacker.
Does this matter?
Lower severity and a low EPSS score (1.11%). Track it; it rarely justifies an emergency change on its own.
Description
An HTTP response splitting attack in web application in ASUS RT-AX88U before v3.0.0.4.388.20558 allows an attacker to craft a specific URL that if an authenticated victim visits it, the URL will give access to the cloud storage of the attacker.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- EPSS
- 1.11% probability · 66th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-74
- Affected
- asus/rt-ax88u firmware
- Source
- cve@mitre.org
EPSS 1.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/efchatz/easy-exploits/tree/main/Web/ASUS/CVE-2021-41437Patch, Third Party Advisory
- https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AX88U/HelpDesk_BIOS/Patch, Product, Vendor Advisory
- https://github.com/efchatz/easy-exploits/tree/main/Web/ASUS/CVE-2021-41437Patch, Third Party Advisory
- https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AX88U/HelpDesk_BIOS/Patch, Product, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.