CVE-2021-21960

A stack-based buffer overflow vulnerability exists in both the LLMNR functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted network packet can lead to remote code execution. An attacker can send a malicious packet to trigger this vulnerability.

CVSS v3 10.0 CRITICAL
CVSS v2.0 7.5 HIGH

10.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1389	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:sealevel:seaconnect_370w_firmware:1.3.34:*:*:*:*:*:*:*

cpe:2.3:h:sealevel:seaconnect_370w:-:*:*:*:*:*:*:*

History

26 Jun 2023, 18:59

Type	Values Removed	Values Added
CWE	~~CWE-787~~	CWE-1284

29 Jul 2022, 16:38

Type	Values Removed	Values Added
CVSS	v2 : ~~7.5~~ v3 : ~~9.8~~	v2 : 7.5 v3 : 10.0

09 Feb 2022, 15:45

Type	Values Removed	Values Added
CPE		cpe:2.3:h:sealevel:seaconnect_370w:-:::::::* cpe:2.3:o:sealevel:seaconnect_370w_firmware:1.3.34:::::::*
References	~~(MISC) https://talosintelligence.com/vulnerability_reports/TALOS-2021-1389 -~~	(MISC) https://talosintelligence.com/vulnerability_reports/TALOS-2021-1389 - Exploit, Third Party Advisory
First Time		Sealevel Sealevel seaconnect 370w Sealevel seaconnect 370w Firmware
CWE		CWE-787
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8

04 Feb 2022, 23:28

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-02-04 23:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-21960

Mitre link : CVE-2021-21960

CVE.ORG link : CVE-2021-21960

JSON object : View

Products Affected

sealevel

seaconnect_370w_firmware
seaconnect_370w

CWE

CWE-1284

Improper Validation of Specified Quantity in Input

CWE-121

Stack-based Buffer Overflow

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