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9.3
Atop Technologies EHG2408 Switch Can Be Controlled Remotely
CVE-2026-3823
Summary
A security weakness in the EHG2408 series switch made by Atop Technologies lets hackers gain control over the device from anywhere. This means they could potentially change the switch's settings, access sensitive information, or cause the device to malfunction. Affected users should update their firmware to the latest version to fix this issue.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| blackbeartechhive | atop_ehg2408_firmware | <= 3.36 | – |
| blackbeartechhive | atop_ehg2408-2sfp_firmware | <= 3.36 | – |
Original title
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 a...
Original 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.
nvd CVSS3.1
8.8
nvd CVSS4.0
9.3
Vulnerability type
CWE-121
Stack-based Buffer Overflow
CWE-787
Out-of-bounds Write
Published: 9 Mar 2026 · Updated: 13 Mar 2026 · First seen: 9 Mar 2026