CVE-2021-21964

CVSS V2 High 7.1 CVSS V3 High 7.4

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.

Overview

CVE ID
CVE-2021-21964

Assigner
talos-cna@cisco.com

Vulnerability Status
Analyzed

Published Version
2022-02-04T23:15:10

Last Modified Date
2022-10-25T15:54:51

Weakness Enumerations

CWE	URL
CWE-306	http://cwe.mitre.org/data/definitions/306.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
		AND
cpe:2.3:o:sealevel:seaconnect_370w_firmware:1.3.34:::::::*	1	OR
cpe:2.3:h:sealevel:seaconnect_370w:-:::::::*	0	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:M/Au:N/C:N/I:N/A:C

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
COMPLETE

Base Score
7.1

Severity
HIGH

Exploitability Score
8.6

Impact Score
6.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
REQUIRED

Scope
CHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
7.4

Base Severity
HIGH

Exploitability Score
2.8

Impact Score
4

References

Reference URL	Reference Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1392	Exploit Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-21964
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21964

History

Created	Old Value	New Value	Data Type	Notes
2022-04-20 17:01:46				Added to TrackCVE
2022-12-06 08:35:51	2022-02-04T23:15Z	2022-02-04T23:15:10	CVE Published Date	updated
2022-12-06 08:35:51		2022-10-25T15:54:51	CVE Modified Date	updated
2022-12-06 08:35:51		Analyzed	Vulnerability Status	updated