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CVE-2021-21961

Published: Feb 4, 2022Updated: Nov 21, 2024 Sources: CVE List NVDCWE-121
NVD MITRE
10.0CVSSCRITICAL
EPSS Score
2.5%
Top 17.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

A stack-based buffer overflow vulnerability exists in the NBNS 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 Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-121CWE-787

Affected Products

Sealeveln/a
seaconnect 370w firmwaresealevel
Embedded
ICS / OT / IoT / industrial-network
sealevelcommercialICS / OT / IoTaka seaconnect 370w firmware

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1389
talosintelligence.com

Timeline

Published
Feb 4, 2022
Last Updated
Nov 21, 2024

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