CVE-2026-3823

Atop Technologies|EHG2408 series switch - Stack-based Buffer Overflow

Published Mar 9, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Please update firmware to version 3.36 or later.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
First Time appeared Blackbeartechhive
Blackbeartechhive atop Ehg2408
Blackbeartechhive atop Ehg2408-2sfp
Blackbeartechhive atop Ehg2408-2sfp Firmware
Blackbeartechhive atop Ehg2408 Firmware
Weaknesses CWE-787
CPEs cpe:2.3:h:blackbeartechhive:atop_ehg2408-2sfp:-:*:*:*:*:*:*:*
cpe:2.3:h:blackbeartechhive:atop_ehg2408:-:*:*:*:*:*:*:*
cpe:2.3:o:blackbeartechhive:atop_ehg2408-2sfp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:blackbeartechhive:atop_ehg2408_firmware:*:*:*:*:*:*:*:*
Vendors & Products Blackbeartechhive
Blackbeartechhive atop Ehg2408
Blackbeartechhive atop Ehg2408-2sfp
Blackbeartechhive atop Ehg2408-2sfp Firmware
Blackbeartechhive atop Ehg2408 Firmware
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Atop Technologies|EHG2408 series switch - Stack-based Buffer Overflow
First Time appeared Atop Technologies
Atop Technologies ehg2408
Atop Technologies ehg2408-2sfp
Weaknesses CWE-121
CPEs cpe:2.3:h:atop_technologies:ehg2408-2sfp:*:*:*:*:*:*:*:*
cpe:2.3:h:atop_technologies:ehg2408:*:*:*:*:*:*:*:*
Vendors & Products Atop Technologies
Atop Technologies ehg2408
Atop Technologies ehg2408-2sfp
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': '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'}