CVE-2026-71958

Critical

Description

D-Link DWR-M961 devices with hardware version C1 and software version 1.1.2_C1_202602110044 contain a buffer overflow vulnerability in the quicksetup.cgi interface. A remote attacker can write overly long strings to the test4, ssid2, and username fields and execute arbitrary commands by crafting a specific payload, or cause the device to crash.

SeverityCritical

CVSS9.8

Exploit probability—

ProductDWR-M961

PublishedAug 8, 2026

First seenAug 8, 2026

Weakness typeCWE-120CWE-120

How to fix

Update

D-Link Corporation DWR-M9611.1.5_C1_202607071108 or later

Patches

supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10512

Affected products

Product	Affected versions	Fixed in
D-Link Corporation DWR-M961	v < 1.1.5_C1_202607071108	1.1.5_C1_202607071108

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