CVE-2025-10634: D-Link DIR-823X Environment Variable goahead sub_412E7C command injection

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-09-18 · updated 2026-09-30
Weakness: CWE-74

Description

A weakness has been identified in D-Link DIR-823X 240126/240802/250416. The impacted element is the function sub_412E7C of the file /usr/sbin/goahead of the component Environment Variable Handler. This manipulation of the argument terminal_addr/server_ip/server_port causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited.

Affected products

D-Link DIR-823X: 240126, 240802, 250416

References

https://github.com/Cpppq43/D-Link/blob/main/DIink-DIR-823x.md
https://pan.baidu.com/s/1dWnXEa58P0KHw53L9U_PoQ
https://vuldb.com/?ctiid.324662
https://vuldb.com/?id.324662
https://vuldb.com/?submit.650792
https://www.dlink.com/
https://github.com/Cpppq43/D-Link/blob/main/DIink-DIR-823x.md

Get alerted when CVE-2025-10634 or the next vulnerability affects your stack