CVE Tools

CVE-2026-5212

D-Link DNS-1550-04 webdav_mgr.cgi Webdav_Upload_File stack-based overflow

Published: Mar 31, 2026Updated: Apr 2, 2026 Sources: CVE List NVDCWE-119

No Known Exploits

No Fix Available

Description

A vulnerability has been found 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. This issue affects the function Webdav_Upload_File of the file /cgi-bin/webdav_mgr.cgi. The manipulation of the argument f_file leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-119 CWE-121 CWE-787

Affected Products

dnr-202l firmware dlink Networking Infrastructure

dnr-326 firmware dlink Networking Infrastructure

dns-1100-4 firmware dlink Networking Infrastructure

dns-120 firmware dlink Networking Infrastructure

dns-1200-05 firmware dlink Networking Infrastructure

dlinkcommercialTWNetworking Infrastructure

and 35 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques

Initial Access

Privilege Escalation

View detailed technique mapping

References

https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_166/166.md

https://vuldb.com/submit/780435

https://vuldb.com/submit/780436

and 3 more references View all →

Timeline

Published

Mar 31, 2026

Last Updated

Apr 2, 2026

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