CVE-2024-44589Public exploit

Unauthenticated code execution via unbounded HNAP copies

Published Sep 18, 2024 · Updated Sep 19, 2024

Stack overflow in the HNAP Login handler in D-Link DCS-960L firmware 1.09 allows remote attackers to execute arbitrary code. The handler copies attacker-controlled Action, Username, and LoginPassword values into fixed-length stack buffers with strcpy and no length validation. Unauthenticated access to the camera's HNAP web service from an adjacent network is sufficient, and successful exploitation runs code as root.

CVSS severity8.8
High
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in the HNAP Login handler in D-Link DCS-960L firmware 1.09 allows remote attackers to execute arbitrary code. The handler copies attacker-controlled Action, Username, and LoginPassword values into fixed-length stack buffers with strcpy and no length validation. Unauthenticated access to the camera's HNAP web service from an adjacent network is sufficient, and successful exploitation runs code as root.

The record

CVE
CVE-2024-44589
Published
Sep 18, 2024
Updated
Sep 19, 2024
Vendor
D-Link Corporation
Product
DCS-960L Firmware
Classifications
CWE-121, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 2024Record 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=1.09

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

D-Link Corporation · DCS-960L Firmwareversion=1.09

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
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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