CVE-2026-4193

Name: CVE-2026-4193
Creator: NVD / NIST
Published: 2026-03-16T14:20:02.893+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.77%

Last modified Jun 17, 2026

CVE-2026-4193 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.77% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS 4.0

5.5/10

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.77%

51.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dlink	Dir-823g Firmware	1.0.2b05

References

https://github.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_91/91.mdExploit, Third Party Advisory
https://github.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_92/92.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.351105Permissions Required, VDB Entry
https://vuldb.com/?id.351105Third Party Advisory, VDB Entry
https://vuldb.com/?submit.769835Third Party Advisory, VDB Entry
https://vuldb.com/?submit.769836Third Party Advisory, VDB Entry
https://vuldb.com/?submit.769837Third Party Advisory, VDB Entry
https://vuldb.com/?submit.769838Third Party Advisory, VDB Entry
https://vuldb.com/?submit.769839Third Party Advisory, VDB Entry
https://vuldb.com/?submit.769841Third Party Advisory, VDB Entry
https://www.dlink.com/Product

Timeline

Published: Mar 16, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-4193?

How severe is CVE-2026-4193?

CVE-2026-4193 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.77% probability of exploitation in the next 30 days.

How do I fix CVE-2026-4193?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-4193?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST