Paper/Archive/CVE-2026-124560

CVE-2026-124560

D-Link DIR-878 — D-Link DIR-878 HNAP prog.cgi GetCAPTCHAsetting heap-based overflow

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 No EPSS score.000 × 200.0 No public exploit+100.0 SSVC exploitation: unknown+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

DIR-8781.20B05–CNA

Scores by source

VulDB (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

VulDB (CNA)9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

VulDB (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

References

writeupvuldb.com/vuln/432892 refvuldb.com/vuln/432892/cti writeupvuldb.com/cve/CVE-2026-124560 writeupvuldb.com/submit/1035616 exploitgithub.com/Zimo-666/DIR-878-cves/tree/main/01-captcha-uid-heap-overflow refdlink.com