CVE-2026-71958

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10512
https://www.dlink.com/middle-east/en/products/dwr-m961-4g-ac1200-lte-router
https://www.vulncheck.com/advisories/d-link-dwr-m961-buffer-overflow-via-quicksetup-cgi

Configurations

No configuration.

History

08 Aug 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-08-08 18:16

Updated : 2026-08-08 18:16

NVD link : CVE-2026-71958

Mitre link : CVE-2026-71958

CVE.ORG link : CVE-2026-71958

JSON object : View

Products Affected

No product.

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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