High 8.1Published Sep 7, 2026

CVE-2026-86297D-Link DIR-605 L2TP Control Message tunnel.c tunnel_set_params off-by-one

Updated under an hour ago (2026-10-19 06:30 UTC)

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It affects D-Link DIR-605. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for D-Link DIR-605

Exploited in the last 30 days

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.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-193, CWE-189
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Sep 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

D-Link DIR-605 d-link:dir-605	B1v202WWB03	CNA record

References

https://vuldb.com/vuln/399459vdb-entry, technical-description
https://vuldb.com/vuln/399459/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2026-86297third-party-advisory
https://vuldb.com/submit/906299third-party-advisory
https://tzh00203.notion.site/D-Link-DIR-605-L2TP-Host-Name-AVP-Out-of-Bounds-Write-33cb5c52018a809ba163f988c15fc1b7exploit
https://www.dlink.com/broken-link, product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.