PT-2026-24017 · Atop Technologies · Ehg2408-2Sfp+1

Daniel Hulliger · Published 2026-03-09 · Updated 2026-03-13 · CVE-2026-3823

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Atop Technologies EHG2408 series switch Atop Technologies EHG2408-2SFP

Description The EHG2408 series switch developed by Atop Technologies contains a Stack-based Buffer Overflow issue. This allows unauthenticated remote attackers to control the program's execution flow and execute arbitrary code. The vulnerability presents a critical cyber threat and could serve as a pivot point for Operational Technology (OT) networks.

Recommendations Versions prior to a fix are affected. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

CVE-2026-3823

Affected Products

Ehg2408 Series Switch

Ehg2408-2Sfp

References · 15

• https://osv.dev/vulnerability/CVE-2026-3823 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-3823 · Security Note
• https://twitter.com/CVEnew/status/2031122582280290359 · Twitter Post
• https://t.me/CVEtracker/46870 · Telegram Post
• https://twcert.org.tw/en/cp-139-10753-e091e-2.html · Note
• https://twitter.com/cracbot/status/2032049140025409550 · Twitter Post
• https://t.me/cveNotify/154748 · Telegram Post
• https://twitter.com/cracbot/status/2032411478003966382 · Twitter Post
• https://twitter.com/cyberbivash/status/2030925843136991434 · Twitter Post
• https://twitter.com/0dayPublishing/status/2030896084868895188 · Twitter Post
• https://twitter.com/TheHackerWire/status/2030921504867901758 · Twitter Post
• https://twcert.org.tw/tw/cp-132-10752-5a4d9-1.html · Note
• https://twitter.com/CveFindCom/status/2030911825911353756 · Twitter Post
• https://twitter.com/vuldb/status/2030901045069856943 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2030915990884589647 · Twitter Post