Vulnerability · Published Mar 9, 2026 · Assigned by twcert
CVE-2026-3823Atop Technologies｜EHG2408 series switch - Stack-based Buffer Overflow
Critical 9.8
In plain English
A critical-severity stack buffer overflow in EHG2408 from Atop Technologies. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.8%top 42.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Atop Technologies | EHG2408 | 0 – before 3.36 |
| Atop Technologies | EHG2408-2SFP | 0 – before 3.36 |
Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://www.twcert.org.tw/tw/cp-132-10752-5a4d9-1.html third-party-advisory
- https://www.twcert.org.tw/en/cp-139-10753-e091e-2.html third-party-advisory