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CVE-2026-5215

D-Link DNS-1550-04 network_mgr.cgi cgi_get_ipv6 access control

MEDIUM
5.3
CVSS Score
Published: March 31, 2026 at 09:15 PM UTC
Updated: June 17, 2026 at 10:58 AM UTC
21 products affected across 1 vendorDNS-320DNS 340L FirmwareDNS 327L Firmware

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.8%
SSVC
PoC

Description

A vulnerability was identified in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. The impacted element is the function cgi_get_ipv6 of the file /cgi-bin/network_mgr.cgi. Such manipulation leads to improper access controls. 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.

Dnr 202L Firmware· D-Link
95%
v ≤ 2026-02-0520260205
dlink-dnr-202l (same device)
Dnr 326 Firmware· D-Link
95%
v ≤ 2026-02-0520260205
dlink-dnr-326 (same device)
DNS 1100-4 Firmware· D-Link
95%
v ≤ 2026-02-0520260205
dlink-dns-1100-4 (same device)
DNS 120 Firmware· D-Link
95%
v ≤ 2026-02-0520260205
dlink-dns-120 (same device)
DNS 1200-05 Firmware· D-Link
95%
v ≤ 2026-02-0520260205
dlink-dns-1200-05 (same device)
DNS 1550-04 Firmware· D-Link
95%
v ≤ 2026-02-0520260205
dlink-dns-1550-04 (same device)
DNS 315L Firmware· D-Link
95%
v ≤ 2026-02-0520260205
dlink-dns-315l (same device)
DNS-320· D-Link
95%
v ≤ 2026-02-0520260205
DNS 320L Firmware· D-Link
95%
v ≤ 2026-02-0520260205
dlink-dns-320l (same device)
DNS 320LW Firmware· D-Link
95%
v ≤ 2026-02-0520260205
dlink-dns-320lw (same device)

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 (5)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/vuln/354351
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/vuln/354351/cti
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/submit/780440
ExploitThird Party Advisory
Source: cverecord
https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_170/170.md
Product
Source: cverecord
https://www.dlink.com/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

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

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-284CWE-266

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