CVE-2026-3823

HIGH
2026-03-09 [email protected]
8.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:56 vuln.today
CVE Published
Mar 09, 2026 - 07:16 nvd
HIGH 8.8

Tags

Buffer Overflow Stack Overflow Atop Ehg2408 2sfp Firmware Atop Ehg2408 Firmware

Description

EHG2408 series switch developed by Atop Technologies has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and execute arbitrary code.

Analysis

Unauthenticated remote attackers can exploit a stack-based buffer overflow in Atop EHG2408 series switches to achieve arbitrary code execution and full system compromise. The vulnerability requires only network access and no user interaction, allowing attackers to completely control affected devices. …

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Remediation

Within 24 hours: Inventory all EHG2408 series switches in production and isolate them from untrusted networks; document business criticality of each device. Within 7 days: Implement network segmentation to restrict switch management access to trusted administrative networks only; enable all available logging and monitoring. …

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Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +44
POC: 0

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CVE-2026-3823 vulnerability details – vuln.today
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