Dlink Dir-823g Firmware vulnerabilities
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Published CVEs affecting Dlink Dir-823g Firmware: 7 record(s), with affected versions and fixes.cpe:2.3:o:dlink:dir-823g_firmware
CVE-2026-15270
High · 7.5
CWE-266 Jul 9, 2026
D-link DIR-823G Web boa.conf least privilege violation
A weakness has been identified in D-link DIR-823G 1.0.2B05_20181207. Affected by this vulnerability is an unknown functionality of the file /etc/boa/boa.conf of the component Web Interface. Executing a manipulation can lead to least privilege violation. The attack can be launched remotely. The attack requires a high level of complexity. The exploitation appears to be difficult. The exploit has been made available to the public and could be used for attacks.
CVE-2026-11492
High · 8.8
CWE-266 Jun 8, 2026
D-Link DIR-823G vsftpd vsftpd.conf least privilege violation
A security flaw has been discovered in D-Link DIR-823G 1.0.2B05. The affected element is an unknown function of the file /etc/vsftpd.conf of the component vsftpd. Performing a manipulation results in least privilege violation. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.
CVE-2026-4193
High · 7.5
CWE-266 Mar 16, 2026
D-Link DIR-823G goahead UpdateClientInfo access control
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.
CVE-2025-60675
Medium · 5.4
CWE-77 Nov 13, 2025
Command Injection in Dlink Dir-823g Firmware
A command injection vulnerability exists in the D-Link DIR-823G router firmware DIR823G_V1.0.2B05_20181207.bin in the timelycheck and sysconf binaries, which process the /tmp/new_qos.rule configuration file. The vulnerability occurs because parsed fields from the configuration file are concatenated into command strings and executed via system() without any sanitization. An attacker with write access to /tmp/new_qos.rule can execute arbitrary commands on the device.
CVE-2025-60671
Medium · 5.4
CWE-77 Nov 13, 2025
Command Injection in Dlink Dir-823g Firmware
A command injection vulnerability exists in the D-Link DIR-823G router firmware DIR823G_V1.0.2B05_20181207.bin in the timelycheck and sysconf binaries, which process the /var/system/linux_vlan_reinit file. The vulnerability occurs because content read from this file is only partially validated for a prefix and then formatted using vsnprintf() before being executed with system(), allowing an attacker with write access to /var/system/linux_vlan_reinit to execute arbitrary commands on the device.
CVE-2025-60332
High · 7.5
CWE-476 Oct 22, 2025
NULL Pointer Dereference in Dlink Dir-823g Firmware
A NULL pointer dereference in the SetWLanRadioSettings function of D-Link DIR-823G A1 v1.0.2B05 allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request.
CVE-2025-60331
High · 7.5
CWE-121 Oct 22, 2025
Stack-based Buffer Overflow in Dlink Dir-823g Firmware
D-Link DIR-823G A1 v1.0.2B05 was discovered to contain a buffer overflow in the FillMacCloneMac parameter in the /EXCU_SHELL endpoint. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.