CVE-2026-3823: CWE-121 Stack-based buffer overflow in Atop Technologies EHG2408
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.
AI Analysis
Technical Summary
CVE-2026-3823 is a critical stack-based buffer overflow vulnerability in the Atop Technologies EHG2408 series switch. It allows unauthenticated remote attackers to manipulate the program's execution flow and execute arbitrary code. The vulnerability affects version 0 of the product. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. No official patch or fix has been published yet, and no exploits are currently known in the wild.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary code on the affected device without authentication, potentially leading to full compromise of the switch. This could impact confidentiality, integrity, and availability of network operations relying on the device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict network access to the device from untrusted sources and monitor for unusual activity related to the switch. Follow vendor communications closely for updates on fixes.
CVE-2026-3823: CWE-121 Stack-based buffer overflow in Atop Technologies EHG2408
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.
CVSS v4.0
Score 9.3critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-3823 is a critical stack-based buffer overflow vulnerability in the Atop Technologies EHG2408 series switch. It allows unauthenticated remote attackers to manipulate the program's execution flow and execute arbitrary code. The vulnerability affects version 0 of the product. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. No official patch or fix has been published yet, and no exploits are currently known in the wild.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary code on the affected device without authentication, potentially leading to full compromise of the switch. This could impact confidentiality, integrity, and availability of network operations relying on the device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict network access to the device from untrusted sources and monitor for unusual activity related to the switch. Follow vendor communications closely for updates on fixes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- twcert
- Date Reserved
- 2026-03-09T03:01:56.448Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69ae6ab82904315ca3cb9567
Added to database: 03/09/2026, 06:37:44 UTC
Last enriched: 07/07/2026, 10:41:56 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 366
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