CVE-2021-3254
CVSS v3
7.5
HIGH
EPSS Score
1.8 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Asus DSL-N14U-B1 1.1.2.3_805 allows remote attackers to cause a Denial of Service (DoS) via a TCP SYN scan using nmap.
Technical details
- Published
- 2022-05-11
Frequently asked questions
What is CVE-2021-3254?
Asus DSL-N14U-B1 1.1.2.3_805 allows remote attackers to cause a Denial of Service (DoS) via a TCP SYN scan using nmap.
Is CVE-2021-3254 actively exploited?
Active exploitation of CVE-2021-3254 has not been confirmed. Its EPSS score was 1.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-3254?
CVE-2021-3254 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-3254 affecting your environment?
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