Description
A security vulnerability has been detected in D-Link DIR-823G 1.0.2B05. The affected element is the function GetDDNSSettings/GetDeviceDomainName/GetDeviceSettings/GetDMZSettings/GetFirewallSettings/GetGuestNetworkSettings/GetLanWanConflictInfo/GetLocalMacAddress/GetNetworkSettings/GetQoSSettings/GetRouterInformationSettings/GetRouterLanSettings/GetWanSettings/SetAccessCtlList/SetAccessCtlSwitch/SetDeviceSettings/SetGuestWLanSettings/SetIPv4FirewallSettings/SetNetworkSettings/SetNetworkTomographySettings/SetNTPServerSettings/SetRouterLanSettings/SetStaticClientInfo/SetStaticRouteSettings/SetWLanRadioSecurity/SetWPSSettings/UpdateClientInfo of the component goahead. Such manipulation leads to improper access controls. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
Published: 2026-03-16
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

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History

Tue, 07 Apr 2026 09:15:00 +0200

Type Values Removed Values Added
First Time appeared Dlink
Dlink dir-823g
Dlink dir-823g Firmware
CPEs cpe:2.3:h:dlink:dir-823g:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-823g_firmware:1.0.2b05:*:*:*:*:*:*:*
Vendors & Products Dlink
Dlink dir-823g
Dlink dir-823g Firmware

Tue, 17 Mar 2026 11:00:00 +0100

Type Values Removed Values Added
First Time appeared D-link
D-link dir-823g
Vendors & Products D-link
D-link dir-823g

Mon, 16 Mar 2026 16:15:00 +0100

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 16 Mar 2026 00:15:00 +0100

Type Values Removed Values Added
Description A security vulnerability has been detected in D-Link DIR-823G 1.0.2B05. The affected element is the function GetDDNSSettings/GetDeviceDomainName/GetDeviceSettings/GetDMZSettings/GetFirewallSettings/GetGuestNetworkSettings/GetLanWanConflictInfo/GetLocalMacAddress/GetNetworkSettings/GetQoSSettings/GetRouterInformationSettings/GetRouterLanSettings/GetWanSettings/SetAccessCtlList/SetAccessCtlSwitch/SetDeviceSettings/SetGuestWLanSettings/SetIPv4FirewallSettings/SetNetworkSettings/SetNetworkTomographySettings/SetNTPServerSettings/SetRouterLanSettings/SetStaticClientInfo/SetStaticRouteSettings/SetWLanRadioSecurity/SetWPSSettings/UpdateClientInfo of the component goahead. Such manipulation leads to improper access controls. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
Title D-Link DIR-823G goahead UpdateClientInfo access control
Weaknesses CWE-266
CWE-284
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:W/RC:UR'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:W/RC:R'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:W/RC:R'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}


Subscriptions

D-link Dir-823g
Dlink Dir-823g Dir-823g Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-03-16T14:40:35.349Z

Reserved: 2026-03-15T08:07:31.639Z

Link: CVE-2026-4193

cve-icon Vulnrichment

Updated: 2026-03-16T14:36:46.915Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-16T14:20:02.893

Modified: 2026-06-17T10:56:09.317

Link: CVE-2026-4193

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-25T22:30:10Z

Weaknesses
  • CWE-266

    Incorrect Privilege Assignment

  • CWE-284

    Improper Access Control