CVE-2026-2959Public exploitNetwork attack vector

Authenticated web-server crash via unchecked submit-url copy

Published Feb 22, 2026 · Updated Feb 22, 2026

Stack-based buffer overflow in D-Link DWR-M960 1.01.07 allows remote authenticated users to crash its web server via a crafted request. The formNewSchedule handler's sub_44E0F8 function uses strcpy to copy the submit-url parameter into the fixed-size wizard_htm buffer without checking its length. A valid low-privilege session and the save_apply parameter reach the vulnerable path; the published proof of concept makes the device unreachable by crashing the boa service.

CVSS severity8.8
High
EPSS probability0.64%
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 a crafted request. The formNewSchedule handler's sub_44E0F8 function uses strcpy to copy the submit-url parameter into the fixed-size wizard_htm buffer without checking its length. A valid low-privilege session and the save_apply parameter reach the vulnerable path; the published proof of concept makes the device unreachable by crashing the boa service.

The record

CVE
CVE-2026-2959
Published
Feb 22, 2026
Updated
Feb 22, 2026
Vendor
D-Link
Product
DWR-M960
Classifications
CWE-119, CWE-121, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 22, 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

7.4VulDBCVSS: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
9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
8.8VulDBCVSS: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-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-121Stack-based Buffer Overflow
T1499.004Application or System Exploitation

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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