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
dlink: dir-823x firmware; dlink: dir-823x
References7
- github.com/Cpppq43/D-Link/blob/main/DIink-DIR-823x.md ExploitThird Party Advisory
- github.com/Cpppq43/D-Link/blob/main/DIink-DIR-823x.md ExploitThird Party Advisory
- pan.baidu.com/s/1dWnXEa58P0KHw53L9U_PoQ Broken Link
- vuldb.com/?ctiid.324662 Permissions RequiredVDB Entry
- vuldb.com/?id.324662 Third Party AdvisoryVDB Entry
- vuldb.com/?submit.650792 Third Party AdvisoryVDB Entry
- www.dlink.com/ Product
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
2.1
LOW
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 — exploit probability
- 6% percentile: 94 · as of 8 November 2026
- CWE
- CWE-74CWE-77
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.