CVE-2026-124560 D-Link DIR-878 HNAP prog.cgi GetCAPTCHAsetting heap-based overflow
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-124560?
CVE-2026-124560 is a critical vulnerability in D-Link DIR-878, published on 9 Nov 2026.
Official description
A vulnerability was found in D-Link DIR-878 1.20B05. This affects the function GetCAPTCHAsetting of the file bin/prog.cgi of the component HNAP Handler. Performing a manipulation of the argument uid results in heap-based buffer overflow. The attack can be initiated remotely. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.
Which versions are affected by CVE-2026-124560?
How do I fix CVE-2026-124560?
No fix has been published for CVE-2026-124560 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-124560 being exploited?
There is no known exploitation of CVE-2026-124560 in the wild and no public exploit code.
Sources
Also known as GHSA-7474-5gjp-gr7m.