CVE-2024-13103Network attack vector

Unauthorized configuration changes via Virtual Service handler

Published Jan 2, 2025 · Updated Jan 2, 2025

Improper access control in D-Link DIR-816 A2 1.10CNB05_R1B011D88210 allows remote attackers to alter virtual server settings. The Virtual Service Handler accepts unauthenticated requests to /goform/form2AddVrtsrv.cgi, but the missing authorization check is not publicly described. Network access to the router's management interface is required, and the documented consequence is limited to unauthorized configuration changes.

CVSS severity6.9
Medium
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in D-Link DIR-816 A2 1.10CNB05_R1B011D88210 allows remote attackers to alter virtual server settings. The Virtual Service Handler accepts unauthenticated requests to /goform/form2AddVrtsrv.cgi, but the missing authorization check is not publicly described. Network access to the router's management interface is required, and the documented consequence is limited to unauthorized configuration changes.

The record

CVE
CVE-2024-13103
Published
Jan 2, 2025
Updated
Jan 2, 2025
Vendor
D-Link
Product
DIR-816
Classifications
CWE-284, CWE-266, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 2, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 2, 2025Record 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=1.10CNB05_R1B011D88210

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

D-Link · DIR-816version=1.10CNB05_R1B011D88210

Published CVSS scores

5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
5.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-266Incorrect Privilege Assignment
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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