CVE-2026-3823

CRITICAL

Atop EHG2408 Firmware < 3.36 - Unauthenticated Stack-based Buffer Overflow

Title source: llm

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.

References (2)

Core 2

Core References

Various Sources third-party-advisory

https://www.twcert.org.tw/tw/cp-132-10752-5a4d9-1.html

Various Sources third-party-advisory

https://www.twcert.org.tw/en/cp-139-10753-e091e-2.html

Scores

CVSS v3 9.8

EPSS 0.0073

EPSS Percentile 50.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-121 CWE-787

Status published

Products (4)

Atop Technologies/EHG2408 < 3.36

Atop Technologies/EHG2408-2SFP < 3.36

blackbeartechhive/atop_ehg2408-2sfp_firmware < 3.36

blackbeartechhive/atop_ehg2408_firmware < 3.36

Published Mar 09, 2026

Tracked Since Mar 09, 2026