Buffer overflow in D-Link Di-8100
CVE-2026-7854
A security vulnerability has been detected in D-Link DI-8100 16.07.26A1. Affected by this vulnerability is the function url_rule_asp of the file /url_rule.asp of the component POST Parameter Handler. Such manipulation leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.059 (93.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.059 · change: +0.040
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
- vuldb.com/vuln/361131 (technical-description, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/361131/cti (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/submit/807838 (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/draw-ctf/report/blob/main/DI-8100/url_rule_asp_overflow.md (Exploit, Third Party Advisory, exploit)
- www.dlink.com/ (Product, product)
Frequently asked questions
- What is CVE-2026-7854?
- CVE-2026-7854 is a critical-severity vulnerability in D-Link Di-8100, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2026-05-05.
- How severe is CVE-2026-7854?
- Critical severity. CVSS v3 base score is 9.8 out of 10.