Buffer overflow in D-Link Dir-868l
CVE-2026-94089
A vulnerability was determined in D-Link DIR-868L 2.01b05. This issue affects the function strcpy of the file /webfa_authentication.cgi of the component Authentication Handler. Executing a manipulation of the argument id/password can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (62.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 62nd percentile — 62.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- D-Link Dir-868l — versions 2.01b05
Weakness classification (CWE)
References
- vuldb.com/vuln/408017 (technical-description, vdb-entry)
- vuldb.com/vuln/408017/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-94089 (third-party-advisory)
- vuldb.com/submit/951681 (third-party-advisory)
- github.com/Walnut1337/CVE/blob/main/poc/poc_crash.py (exploit)
- www.dlink.com/ (product)
Frequently asked questions
- What is CVE-2026-94089?
- CVE-2026-94089 is a critical-severity vulnerability in D-Link Dir-868l, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 10.0/10. Published 2026-09-20.
- How severe is CVE-2026-94089?
- Critical severity. CVSS v3 base score is 10.0 out of 10.