Vulnerability in D-Link Dir-605
CVE-2026-86297
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (66.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.0% 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: 0.011 · change: +0.001
Affected products
- D-Link Dir-605 — versions B1v202WWB03
Weakness classification (CWE)
References
- vuldb.com/vuln/399459 (technical-description, vdb-entry)
- vuldb.com/vuln/399459/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-86297 (third-party-advisory)
- vuldb.com/submit/906299 (third-party-advisory)
- tzh00203.notion.site/D-Link-DIR-605-L2TP-Host-Name-AVP-Out-of-Bounds-Write-33cb… (exploit)
- www.dlink.com/ (product, broken-link)
Frequently asked questions
- What is CVE-2026-86297?
- CVE-2026-86297 is a high-severity vulnerability in D-Link Dir-605, classified under CWE-189. CVSS score: 8.1/10. Published 2026-09-07.
- How severe is CVE-2026-86297?
- High severity. CVSS v3 base score is 8.1 out of 10.