# CVE-2026-86297

## Summary

- **CVE ID:** CVE-2026-86297
- **Severity:** CRITICAL
- **CVSS Score:** 9.2 (CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P)
- **CWE:** CWE-193, CWE-189
- **Published:** Sep 7, 2026
- **Last Modified:** Sep 9, 2026

## Description

A vulnerability was identified in D-Link DIR-605 B1v202WWB03. This issue affects the function tunnel_set_params of the file progs.gpl/pppd.alpha/l2tp/tunnel.c of the component L2TP Control Message Parser. Such manipulation of the argument peer_hostname  leads to off-by-one. The attack may be performed from remote. Attacks of this nature are highly complex. The exploitability is assessed as difficult. The exploit is publicly available and might be used.

## Affected Products

- D-Link — DIR-605 (B1v202WWB03)

## References

- [CNA](https://vuldb.com/vuln/399459)
- [CNA](https://vuldb.com/vuln/399459/cti)
- [CNA](https://vuldb.com/cve/CVE-2026-86297)
- [CNA](https://vuldb.com/submit/906299)
- [CNA](https://tzh00203.notion.site/D-Link-DIR-605-L2TP-Host-Name-AVP-Out-of-Bounds-Write-33cb5c52018a809ba163f988c15fc1b7)
- [CNA](https://www.dlink.com/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 1.05%
- **EPSS Percentile:** 62.2

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