CVE-2021-3229
CVSS v3
7.5
HIGH
EPSS Score
2.7 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2021-02-05
Frequently asked questions
What is 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.
Is CVE-2021-3229 actively exploited?
Active exploitation of CVE-2021-3229 has not been confirmed. Its EPSS score was 2.7% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-3229?
CVE-2021-3229 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-3229 affecting your environment?
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