CVE-2026-2960Public exploitNetwork attack vector

Authenticated service crash via unchecked submit-url copy

Published Feb 23, 2026 · Updated Feb 23, 2026

Stack-based buffer overflow in D-Link DWR-M960 1.01.07 allows remote authenticated users to crash its web server via an HTTP request. The formDhcpv6s handler in sub_468D64 passes the user-controlled submit-url value to strcpy, copying it into the fixed-size wizard_htm buffer without a length check. A low-privileged authenticated session and the save_apply parameter reach the copy; an oversized value crashes the boa web server and leaves the device unreachable.

CVSS severity8.8
High
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in D-Link DWR-M960 1.01.07 allows remote authenticated users to crash its web server via an HTTP request. The formDhcpv6s handler in sub_468D64 passes the user-controlled submit-url value to strcpy, copying it into the fixed-size wizard_htm buffer without a length check. A low-privileged authenticated session and the save_apply parameter reach the copy; an oversized value crashes the boa web server and leaves the device unreachable.

The record

CVE
CVE-2026-2960
Published
Feb 23, 2026
Updated
Feb 23, 2026
Vendor
D-Link
Product
DWR-M960
Classifications
CWE-121, CWE-119, T1499.004, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.01.07

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link · DWR-M960version=1.01.07

Published CVSS scores

9.0VulDB CNAAV:N/AC:L/Au:S/C:C/I:C/A:C
7.4VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499.004Application or System Exploitation
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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