CVE-2021-21964 — HIGH (7.4)

Vulnerability Description

A denial of service vulnerability exists in the Modbus 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.

CVSS Score

7.4

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Sealevel	Seaconnect 370W Firmware	1.3.34
Sealevel	Seaconnect 370W	-

Related Weaknesses (CWE)

CWE-306 CWE-284

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1392ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1392ExploitThird Party Advisory

FAQ

What is CVE-2021-21964?

CVE-2021-21964 is a vulnerability with a CVSS score of 7.4 (HIGH). A denial of service vulnerability exists in the Modbus configuration functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. Specially-crafted network packets can lead to denial of service. A...

How severe is CVE-2021-21964?

CVE-2021-21964 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-21964?

Check the references section above for vendor advisories and patch information. Affected products include: Sealevel Seaconnect 370W Firmware, Sealevel Seaconnect 370W.