by Kastro
Paper/Archive/CVE-2026-86297

CVE-2026-86297

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

EPSS 1%public exploitCVSS 9.2
critical.is priorityof 100
51
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 66.3.663 × 2013.3Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
DIR-605B1v202WWB03–CNA

Scores by source

VulDB (CNA)9.2CVSS: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
VulDB (CNA)8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)8.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

writeupvuldb.com/vuln/399459refvuldb.com/vuln/399459/ctiwriteupvuldb.com/cve/CVE-2026-86297writeupvuldb.com/submit/906299exploittzh00203.notion.site/D-Link-DIR-605-L2TP-Host-Name-AVP-Out-of-Bounds-Write-33cb5c52018a809ba163f988c15fc1b7refdlink.com