HOMEVULNERABILITIESCVE-2026-5215
MEDIUM

CVE-2026-5215

CWE-266Published: March 31, 2026· Updated: Apr 2, 2026

5.3
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:8.6th

Official 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.

NVD Source

Technical Analysis

CVE-2026-5215 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

dlink40 products
dnr-202l firmwarednr-202ldnr-326 firmwarednr-326dns-1100-4 firmwaredns-1100-4dns-120 firmwaredns-120dns-1200-05 firmwaredns-1200-05dns-1550-04 firmwaredns-1550-04+28 more
Source: NVD CPE · 40 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_170/170.md
ADVISORYhttps://vuldb.com/submit/780440
ADVISORYhttps://vuldb.com/vuln/354351

All References (5)

→
https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_170/170.mdExploit · Third Party Advisory
→
https://vuldb.com/submit/780440Third Party Advisory · VDB Entry
→
https://vuldb.com/vuln/354351Third Party Advisory · VDB Entry
→
https://vuldb.com/vuln/354351/ctiPermissions Required · VDB Entry
→
https://www.dlink.com/Product

Quick Facts

CVE IDCVE-2026-5215
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-266
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedMar 31, 2026

Related CVEs (CWE-266)

CVE-2026-42368
9.9
CVE-2026-32922
9.9
CVE-2026-42680
9.8
CVE-2025-53209
9.8
CVE-2026-48879
9.8
CVE-2026-34901
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-5215 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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