PT-2025-46879 · D Link · D-Link Dir-823G

Published 2025-11-13 · Updated 2025-11-13 · CVE-2025-60671

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:N/AC:L/Au:S/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions D-Link DIR-823G router firmware version DIR823G V1.0.2B05 20181207.bin

Description A command injection issue exists in the D-Link DIR-823G router firmware. The timelycheck and sysconf binaries process the /var/system/linux vlan reinit file. The issue arises because content read from this file undergoes only partial validation of a prefix and is then formatted using the vsnprintf() function before being executed with system(). This allows an attacker with write access to /var/system/linux vlan reinit to execute arbitrary commands on the device. The vulnerable components are timelycheck and sysconf.

Recommendations Update to a newer version of the D-Link DIR-823G router firmware that addresses this issue. As a temporary workaround, restrict write access to the /var/system/linux vlan reinit file to prevent unauthorized command execution.

Exploit

Fix

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

BDU:2025-14853

CVE-2025-60671

Affected Products

D-Link Dir-823G

References · 8

• 🔥 https://github.com/yifan20020708/SGTaint-0-day/blob/main/DLink/DLink-DIR-823G/CVE-2025-60671.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-60671 · Security Note
• https://osv.dev/vulnerability/CVE-2025-60671 · Vendor Advisory
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-14853 · Security Note
• http://d-link.com · Note
• https://dlink.com/en · Note
• https://t.me/CVEtracker/37271 · Telegram Post