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CVE-2021-21960

CRITICAL Exploitation: PoC
10.0
CVSS 3.0
Description
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.

Metadata

CVE ID
CVE-2021-21960
State
PUBLISHED
Assigner
talos
Reserved
2021-01-04 00:00 UTC
Published
2022-02-04 22:29 UTC
Last updated
2025-04-15 19:11 UTC
Primary CWE
CWE-121
CWE-121: Stack-based Buffer Overflow
Vendor / Product
n/a / Sealevel
Sources
cve.org  ·  NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
n/a Sealevel — Sealevel Systems, Inc. SeaConnect 370W v1.3.34
Weakness (CWE)
CWESourceDescription
CWE-121 cna CWE-121: Stack-based Buffer Overflow
CVSS scores (1)
ScoreSeverityVersionSourceVector
10.0 CRITICAL 3.0 cna CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References (1)
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