What is the CVSS score of CVE-2026-2857?

CVE-2026-2857 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-2026-2857?

A high-severity vulnerability (CVSS 8.8) exists in D-Link DWR-M960 routers that allows attackers to manipulate port forwarding configurations, potentially enabling unauthorized network access and…

Is there a public PoC exploit available for CVE-2026-2857?

Yes, a public proof-of-concept exploit is available for CVE-2026-2857. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-2857?

Within 24 hours: Identify and inventory all D-Link DWR-M960 devices running firmware 1.01.07 in your environment; isolate affected devices from production networks if possible and restrict administrative access. Within 7 days: Implement network segmentation to limit the device's exposure and disable port forwarding functionality if operationally feasible; escalate to D-Link for emergency patch timeline and consider device replacement planning. Within 30 days: Deploy replacement devices or apply vendor patch immediately upon availability; conduct network forensics to detect any unauthorized port forwarding rules or suspicious access patterns.

Dwr M960 Firmware CVE-2026-2857

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 - 20:26 vuln.today

Public exploit code

CVE Published

Feb 20, 2026 - 21:19 nvd

HIGH 8.8

DescriptionCVE.org

A vulnerability was determined in D-Link DWR-M960 1.01.07. Affected by this issue is the function sub_423E00 of the file /boafrm/formPortFw of the component Port Forwarding Configuration Endpoint. This manipulation of the argument submit-url causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

AnalysisAI

Stack-based buffer overflow in D-Link DWR-M960 firmware version 1.01.07 allows authenticated remote attackers to achieve complete system compromise through the Port Forwarding Configuration endpoint. The vulnerability exists in the submit-url parameter processing and has public exploit code available. Affected devices are remotely exploitable by authenticated users with no user interaction required.

Technical ContextAI

Classified as CWE-119 (Buffer Overflow). Affects Dwr-M960 Firmware. A vulnerability was determined in D-Link DWR-M960 1.01.07. Affected by this issue is the function sub_423E00 of the file /boafrm/formPortFw of the component Port Forwarding Configuration Endpoint. This manipulation of the argument submit-url causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

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.