What is the CVSS score of CVE-2026-2855?

CVE-2026-2855 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Dwr M960 Firmware are affected by CVE-2026-2855?

A critical vulnerability in D-Link DWR-M960 routers allows unauthenticated remote attackers to compromise DDNS settings, potentially enabling network redirection attacks, credential theft, or lateral…

Is there a public PoC exploit available for CVE-2026-2855?

Yes, a public proof-of-concept exploit is available for CVE-2026-2855. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-2855?

Within 24 hours: Identify all DWR-M960 devices (1.01.07) in your network and document their location and business purpose. Within 7 days: Implement network segmentation to restrict administrative access to these devices and disable DDNS functionality if not operationally critical. Within 30 days: Replace affected devices with patched alternatives or secure models, or continuously monitor D-Link security advisories for patch availability and apply immediately upon release.

Dwr M960 Firmware CVE-2026-2855

HIGH

Buffer Overflow (CWE-119)

2026-02-20 cna@vuldb.com

Buffer Overflow D-Link Stack Overflow Dwr M960 Firmware

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:04 vuln.today

PoC Detected

Feb 23, 2026 - 20:27 vuln.today

Public exploit code

CVE Published

Feb 20, 2026 - 20:25 nvd

HIGH 8.8

DescriptionCVE.org

A vulnerability has been found in D-Link DWR-M960 1.01.07. Affected is the function sub_4648F0 of the file /boafrm/formDdns of the component DDNS Settings Handler. The manipulation of the argument submit-url leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

Stack-based buffer overflow in D-Link DWR-M960 firmware's DDNS settings handler allows authenticated remote attackers to achieve complete system compromise through a malicious submit-url parameter. Public exploit code exists for this vulnerability, and no patch is currently available. The flaw affects firmware version 1.01.07 and can be exploited without user interaction.

Technical ContextAI

Classified as CWE-119 (Buffer Overflow). Affects Dwr-M960 Firmware. A vulnerability has been found in D-Link DWR-M960 1.01.07. Affected is the function sub_4648F0 of the file /boafrm/formDdns of the component DDNS Settings Handler. The manipulation of the argument submit-url leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.