CVE-2026-3823
CRITICALCVSS 9.8/10EPSS 0.68%
Last modified
CVE-2026-3823 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.68% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Blackbeartechhive | Atop Ehg2408 Firmware | < 3.36 |
| Blackbeartechhive | Atop Ehg2408-2sfp Firmware | < 3.36 |
References
- https://www.twcert.org.tw/en/cp-139-10753-e091e-2.htmlThird Party Advisory
- https://www.twcert.org.tw/tw/cp-132-10752-5a4d9-1.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2026-3823?
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.
How severe is CVE-2026-3823?
CVE-2026-3823 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.68% probability of exploitation in the next 30 days.
How do I fix CVE-2026-3823?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-3823?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST