CVE-2026-3823

9.3 criticalEPSS 0.8%

Critical (9.3) in blackbeartechhive. EPSS 0.8% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

9.3 critical

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

CVSS 3.1

9.8 critical

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
CWEs: CWE-787, CWE-121
Published: 2026-03-09
Modified: 2026-07-07
Record from: the NVD, synced 2026-10-19

Affected

blackbeartechhive:atop_ehg2408-2sfp_firmware
blackbeartechhive:atop_ehg2408_firmware

References

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

Check your stack JSON