Buffer overflow in D-link Di-8100
CVE-2026-7857
A vulnerability has been found in D-Link DI-8100 16.07.26A1. This vulnerability affects the function sprintf of the file /user_group.asp of the component CGI Handler. The manipulation leads to buffer overflow. The attack may be initiated r…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (28.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- D-link Di-8100 — versions 16.07.26A1
- Dlink Di-8100
- Dlink Di-8100_firmware — versions 16.07.26a1
Weakness classification (CWE)
References
- VDB-361134 | D-Link DI-8100 CGI user_group.asp sprintf buffer overflow (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-361134 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #807853 | D-Link DI-8100 16.07.26A1 Denial of Service (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-7857?
- CVE-2026-7857 is a high-severity vulnerability in D-link Di-8100, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.2/10. Published 2026-05-05.
- How severe is CVE-2026-7857?
- High severity. CVSS v3 base score is 7.2 out of 10.