CVE-2026-3823

critical · 9.3

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

0.7%

EPSS (exploit prob.)

53rd

EPSS percentile

2026-03-09

Published

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:X/V:X/RE:X/U:X

Weaknesses

CWE-121CWE-787

Affected products

Vendor	Product	Affected versions
blackbeartechhive	atop_ehg2408_firmware	< 3.36
blackbeartechhive	atop_ehg2408	all versions
blackbeartechhive	atop_ehg2408-2sfp_firmware	< 3.36
blackbeartechhive	atop_ehg2408-2sfp	all versions

Check a specific version with /api/v1/cve/match.

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-3823