PT-2026-6970 · D Link · Dir-823

Jiefengliang · Published 2026-01-26 · Updated 2026-03-09 · CVE-2026-2143

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

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

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

Description A security issue exists in the DDNS Service component of D-Link DIR-823X version 250416. The issue relates to the processing of the /goform/set ddns file. Manipulation of the ddnsType, ddnsDomainName, ddnsUserName, and ddnsPwd arguments can result in operating system command injection. This allows for remote execution of commands. The exploit for this issue has been publicly disclosed.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Command Injection

OS Command Injection

Weakness Enumeration

CWE-77

CWE-78

Related Identifiers

BDU:2026-02074

CVE-2026-2143

Affected Products

Dir-823

References · 13

• 🔥 https://github.com/master-abc/cve/issues/25 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-2143 · Security Note
• https://bdu.fstec.ru/vul/2026-02074 · Security Note
• https://osv.dev/vulnerability/CVE-2026-2143 · Vendor Advisory
• https://t.me/CVEtracker/44093 · Telegram Post
• https://vuldb.com/?ctiid.344778 · Note
• https://twitter.com/cracbot/status/2022264560196169853 · Twitter Post
• https://twitter.com/CVEnew/status/2020421886878871815 · Twitter Post
• https://twitter.com/DavidMarquet19/status/2030916641937088604 · Twitter Post
• https://dlink.com · Note
• https://vuldb.com/?id.344778 · Note
• https://vuldb.com/?submit.747492 · Note
• https://t.me/cveNotify/151290 · Telegram Post