CVE-2021-3229
Denial of service in ASUSWRT ASUS RT-AX3000 firmware versions 3.0.0.4.384_10177 and earlier versions allows an attacker to disrupt the use of device setup services via continuous login error.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.71%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Denial of service in ASUSWRT ASUS RT-AX3000 firmware versions 3.0.0.4.384_10177 and earlier versions allows an attacker to disrupt the use of device setup services via continuous login error.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.71% probability · 86th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- asus/rt-ax3000 firmware
- Source
- cve@mitre.org
EPSS 2.7% 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://dlcdnimgs.asus.com/websites/global/productcustomizedTab/562/ASUSWRT%20portal%20feature.pdfProduct, Vendor Advisory
- https://github.com/fullbbadda1208/CVE-2021-3229Exploit, Third Party Advisory
- https://www.asus.com/us/ASUSWRT/Product, Vendor Advisory
- https://dlcdnimgs.asus.com/websites/global/productcustomizedTab/562/ASUSWRT%20portal%20feature.pdfProduct, Vendor Advisory
- https://github.com/fullbbadda1208/CVE-2021-3229Exploit, Third Party Advisory
- https://www.asus.com/us/ASUSWRT/Product, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.