CVE-2026-86297

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

HIGH
8.1
CVSS Score
Published: September 7, 2026 at 10:45 AM UTC
Updated: September 9, 2026 at 03:17 PM UTC
1 product affected across 1 vendorDir 605 Firmware

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Severity
HIGH8.1
Exploit prediction
EPSS 1%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/399459
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/399459/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-86297
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/906299
ProductBroken Link
Source: cverecord
https://www.dlink.com/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.1HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-193CWE-189

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