CVE-2026-7851: D-Link DI-8100 yyxz.asp sprintf stack-based overflow

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-05-05 · updated 2026-07-20
Weakness: CWE-119

Description

A vulnerability was identified in D-Link DI-8100 16.07.26A1. This affects the function sprintf of the file yyxz.asp. The manipulation of the argument ID leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.

Affected products

D-Link DI-8100: 16.07.26a1

References

https://github.com/draw-ctf/report/blob/main/DI-8100/yyxz_dlink_asp_overflow.md
https://vuldb.com/submit/807798
https://vuldb.com/vuln/361128
https://vuldb.com/vuln/361128/cti
https://www.dlink.com/

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