Stack Buffer Overflow in D-Link DIR-645 1.01-1.03 via hedwigcgi_main
CVE-2026-5815 Published on April 8, 2026
D-Link DIR-645 hedwig.cgi hedwigcgi_main stack-based overflow
A vulnerability was detected in D-Link DIR-645 1.01/1.02/1.03. Impacted is the function hedwigcgi_main of the file /cgi-bin/hedwig.cgi. The manipulation results in stack-based buffer overflow. The attack can be launched remotely. The exploit is now public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
Timeline
Advisory disclosed
VulDB entry created
VulDB entry last update
Weakness Types
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2026-5815 has been classified to as a Stack Overflow vulnerability or weakness.
What is a Buffer Overflow Vulnerability?
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.
CVE-2026-5815 has been classified to as a Buffer Overflow vulnerability or weakness.
Products Associated with CVE-2026-5815
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Affected Versions
D-Link DIR-645:- Version 1.01 is affected.
- Version 1.02 is affected.
- Version 1.03 is affected.