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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
References 6
https://tzh00203.notion.site/D-Link-DIR-605-L2TP-Host-Name-AVP-Out-of-Bounds-Wr…
cna@vuldb.com
https://vuldb.com/cve/CVE-2026-86297
cna@vuldb.com
https://vuldb.com/submit/906299
cna@vuldb.com
https://vuldb.com/vuln/399459
cna@vuldb.com
https://vuldb.com/vuln/399459/cti
cna@vuldb.com
https://www.dlink.com/
cna@vuldb.com