# CVE-2026-94089 — D-Link DIR-868L

> As of 2026-09-20, CVE-2026-94089 is a CRITICAL-severity vulnerability in D-Link DIR-868L, CVSS v3.1 10, EPSS 0.9% (60.2th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-94089 as of 2026-09-20; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-09-20

## What is 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.

The record classifies CVE-2026-94089 under weakness classes [CWE-121](https://intel.threadlinqs.com/cwe/CWE-121), [CWE-119](https://intel.threadlinqs.com/cwe/CWE-119). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 15 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 10 — CRITICAL (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R`)
- **CVSS v4.0 base score:** 10 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P`)
- **EPSS (FIRST):** 0.9% probability of exploitation in the next 30 days, higher than 60.2% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 7.4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-20

## Is CVE-2026-94089 being exploited?

It currently carries a trending score of 45 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [D-Link](https://intel.threadlinqs.com/vendors/d-link): DIR-868L

## How to fix CVE-2026-94089

No vendor patch reference has been recorded for CVE-2026-94089 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-94089

No threat campaign in the Threadlinqs corpus currently references CVE-2026-94089, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-09-22.

**Exploit and proof of concept**

- [github.com — exploit](https://github.com/Walnut1337/CVE/blob/main/poc/poc_crash.py)

**Technical analysis**

- [vuldb.com — vdb entry](https://vuldb.com/vuln/408017)

**Third-party advisory**

- [vuldb.com — signature](https://vuldb.com/vuln/408017/cti)
- [vuldb.com — third party advisory](https://vuldb.com/cve/CVE-2026-94089)
- [vuldb.com — third party advisory (951681)](https://vuldb.com/submit/951681)

**Issue tracking and product pages**

- [dlink.com — product](https://www.dlink.com/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-94089
Full detection coverage and IOCs for threats exploiting CVE-2026-94089 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp