Atop Technologies｜EHG2408 series switch - Stack-based Buffer Overflow
Priority MEDIUM 44CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00814 57th percentileScored 2026-11-07
Fix Fixed EHG2408 (Atop Technologies): 3.36EHG2408-2SFP (Atop Technologies): 3.36
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Atop Technologies | EHG2408 | before 3.36 | 3.36 | Patch available | CNA |
| Atop Technologies | EHG2408-2SFP | before 3.36 | 3.36 | Patch available | CNA |
- EHG2408 VendorAtop Technologies Affected before 3.36 Fixed in 3.36 Patch available CNA
- EHG2408-2SFP VendorAtop Technologies Affected before 3.36 Fixed in 3.36 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:blackbeartechhive:atop_ehg2408_firmware:*:*:*:*:*:*:*:* | before 3.36 | Vulnerable | Blackbeartechhive |
| cpe:2.3:h:blackbeartechhive:atop_ehg2408:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Blackbeartechhive |
| cpe:2.3:o:blackbeartechhive:atop_ehg2408-2sfp_firmware:*:*:*:*:*:*:*:* | before 3.36 | Vulnerable | Blackbeartechhive |
| cpe:2.3:h:blackbeartechhive:atop_ehg2408-2sfp:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Blackbeartechhive |
- cpe:2.3:o:blackbeartechhive:atop_ehg2408_firmware:*:*:*:*:*:*:*:* Versions before 3.36 Vulnerable ·Blackbeartechhive
- cpe:2.3:h:blackbeartechhive:atop_ehg2408:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Blackbeartechhive
- cpe:2.3:o:blackbeartechhive:atop_ehg2408-2sfp_firmware:*:*:*:*:*:*:*:* Versions before 3.36 Vulnerable ·Blackbeartechhive
- cpe:2.3:h:blackbeartechhive:atop_ehg2408-2sfp:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Blackbeartechhive
Remediation
- Fix · CNA EHG2408 (Atop Technologies) Fixed in 3.36
- Fix · CNA EHG2408-2SFP (Atop Technologies) Fixed in 3.36
Timeline
- 2026-10-02 Threatist record created from CVE-2026-3823
- 2026-10-03 Alias added: GHSA-xwwx-hh9w-5r7f
References
Sources
- CVE-2026-3823 · CVE Program
- CVE-2026-3823 · NVD
- FIRST EPSS
- GHSA-xwwx-hh9w-5r7f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences