CVE-2026-101081 D-Link DI-8400 - Buffer Overflow

D-Link DI-8400 16.07 contains a stack-based buffer overflow caused by manipulation of the "opt" argument in menu_nat_more.asp Web Administration Service, letting remote attackers execute arbitrary code, exploit requires no special privileges.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.54% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Published
28 September 2026
Updated
15 October 2026
Weakness
CWE-119

Vendor fix

Update to the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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