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CVE-2026-7851

D-Link DI-8100 yyxz.asp sprintf stack-based overflow

CVSS 8.6 HIGHEPSS 4.1%CWE-119CWE-121
Vexday Risk Score
41Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 8.6EPSS 4.1%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
05 May 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
D-Link · DI-8100
public PoCs found — 1
cve_referencegithub.com/draw-ctf/report/blob/main/DI-8100/yyxz_dlink_asp_overflow.mdunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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