CVE-2021-21965
CVSS v3
9.3
CRITICAL
EPSS Score
1.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A denial of service vulnerability exists in the SeaMax remote configuration functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. Specially-crafted network packets can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.
Technical details
- Published
- 2022-02-04
Frequently asked questions
What is CVE-2021-21965?
A denial of service vulnerability exists in the SeaMax remote configuration functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. Specially-crafted network packets can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.
Is CVE-2021-21965 actively exploited?
Active exploitation of CVE-2021-21965 has not been confirmed. Its EPSS score was 1.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-21965?
CVE-2021-21965 has a CVSS v3 base score of 9.3 (CRITICAL severity).
Is CVE-2021-21965 affecting your environment?
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