# CVE-2026-86509

## Summary

- **CVE ID:** CVE-2026-86509
- **Severity:** CRITICAL
- **CVSS Score:** 9.6 (CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P)
- **CWE:** CWE-121, CWE-119
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 8, 2026

## Description

A flaw has been found in D-Link DIR-895L A1_102b07. This impacts the function sendOffer/sendACK of the file udhcpcd/serverpacket.c of the component udhcpcd. This manipulation causes stack-based buffer overflow. The attack can only be done within the local network. The exploit has been published and may be used.

## Affected Products

- D-Link — DIR-895L (A1_102b07)

## References

- [CNA](https://vuldb.com/vuln/399662)
- [CNA](https://vuldb.com/vuln/399662/cti)
- [CNA](https://vuldb.com/cve/CVE-2026-86509)
- [CNA](https://vuldb.com/submit/906298)
- [CNA](https://tzh00203.notion.site/D-Link-DIR-895L-Stack-Overflow-in-udhcpd-TR-111-Option-125-Parsing-33cb5c52018a80dc8140e1502e4814d0)
- [CNA](https://www.dlink.com/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.43%
- **EPSS Percentile:** 36.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._