CVE-2026-3823 PUBLISHED

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

Assigner: twcert
Reserved: 09.03.2026 Published: 09.03.2026 Updated: 09.03.2026

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 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
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Atop Technologies
Product	EHG2408
Versions	Default: unaffected affected from 0 to 3.36 (excl.)

Vendor	Atop Technologies
Product	EHG2408-2SFP
Versions	Default: unaffected affected from 0 to 3.36 (excl.)

Solutions

Please update firmware to version 3.36 or later.

References

Problem Types

CWE-121 Stack-based buffer overflow CWE

Impacts

CAPEC-100 Overflow Buffers