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Vulnerability record · CVE-2026-3823 · published 9 March 2026

CVE-2026-3823: Blackbeartechhive atop ehg2408 firmware stack-based buffer overflow vulnerability

Blackbeartechhive · Atop Ehg2408 Firmware

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.

9.3 CVSS 4.0 Critical EPSS 0.99% · top 38.9% CWE-121 · Stack-based buffer overflowCWE-787 · Out-of-bounds write
9.3CVSS 4.0 base score
0.99%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
7 Jul 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.twcert.org.tw/en/cp-139-10753-e091e-2.html Third Party Advisory
https://www.twcert.org.tw/tw/cp-132-10752-5a4d9-1.html Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-3823), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.