PT-2026-6939 · D Link · Dir-823

942384053 · Published 2026-02-08 · Updated 2026-02-13 · CVE-2026-2120

Positive Technologies (AI Summary)

CVSS v2.0

8.3

High

Base vector

AV:N/AC:L/Au:M/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions D-Link DIR-823X version 250416

Description A flaw exists in the Configuration Parameter Handler component of D-Link DIR-823X version 250416. The issue stems from manipulating the terminal addr, server ip, and server port arguments within the /goform/set server settings file, leading to operating system command injection. This allows for remote attacks. The exploit is publicly available.

Recommendations Apply a firmware update that addresses the vulnerability in the Configuration Parameter Handler component. As a temporary workaround, restrict access to the /goform/set server settings file. Avoid using the terminal addr, server ip, and server port parameters until the issue is resolved.

Exploit

Fix

OS Command Injection

Command Injection

Weakness Enumeration

CWE-78

CWE-77

Related Identifiers

CVE-2026-2120

Affected Products

Dir-823

References · 12

• 🔥 https://github.com/master-abc/cve/issues/26 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-2120 · Security Note
• https://osv.dev/vulnerability/CVE-2026-2120 · Vendor Advisory
• https://t.me/CVEtracker/44070 · Telegram Post
• https://twitter.com/RedPacketSec/status/2020374790968635687 · Twitter Post
• https://twitter.com/CVEnew/status/2020356554424279292 · Twitter Post
• https://twitter.com/cracbot/status/2022264539983851928 · Twitter Post
• https://dlink.com · Note
• https://vuldb.com/?submit.746916 · Note
• https://vuldb.com/?id.344694 · Note
• https://t.me/cveNotify/151269 · Telegram Post
• https://vuldb.com/?ctiid.344694 · Note