Vulnerability · Published Feb 6, 2026 · Assigned by VulDB

CVE-2026-2063D-Link DIR-823X Web Management set_ac_server os command injection

Medium 4.7

In plain English

A medium-severity OS command injection in DIR-823X from D-Link. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 5.3% (higher than 93% of all known vulnerabilities).

Severity (CVSS 3.1)4.7Medium

Exploit odds (30 days)5.3%top 7.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A security flaw has been discovered in D-Link DIR-823X 250416. This vulnerability affects unknown code of the file /goform/set_ac_server of the component Web Management Interface. The manipulation of the argument ac_server results in os command injection. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.

Affected products (as reported)

Vendor	Product	Versions
D-Link	DIR-823X	250416

Weakness: CWE-78, CWE-77 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References

VDB-344623 | D-Link DIR-823X Web Management set_ac_server os command injection vdb-entry, technical-description
VDB-344623 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #744720 | dlink DIR-823X 250416 OS Command Injection third-party-advisory
https://github.com/master-abc/cve/issues/19 exploit, issue-tracking
https://www.dlink.com/ product