CVE-2025-60671

Medium

Description

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.

SeverityMedium

CVSS5.4

Exploit probability—

ProductDlink Dir-823g Firmware

PublishedNov 13, 2025

First seenNov 13, 2025

Weakness typeCWE-77Command injection

How to fix

Vendor advisories

dlink.com/en/security-bulletin/

Affected products

Product	Affected versions	Fixed in
dlink dir-823g_firmware	1.0.2b05_20181207	—

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