Vulnerability · Published Feb 8, 2026 · Assigned by VulDB

CVE-2026-2120D-Link DIR-823X Configuration Parameter set_server_settings os command injection

High 7.2

In plain English

A high-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 4.7% (higher than 92% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)4.7%top 8.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was identified in D-Link DIR-823X 250416. This affects an unknown function of the file /goform/set_server_settings of the component Configuration Parameter Handler. The manipulation of the argument terminal_addr/server_ip/server_port leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used.

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:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-344694 | D-Link DIR-823X Configuration Parameter set_server_settings os command injection vdb-entry, technical-description
VDB-344694 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #746916 | D-Link DIR-823X 250416 OS Command Injection third-party-advisory
https://github.com/master-abc/cve/issues/26 exploit, issue-tracking
https://www.dlink.com/ product