Vulnerability · Published Feb 8, 2026 · Assigned by VulDB
CVE-2026-2142D-Link DIR-823X set_qos sub_420688 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 6.6% (higher than 94% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)6.6%top 6.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A weakness has been identified in D-Link DIR-823X 250416. This vulnerability affects the function sub_420688 of the file /goform/set_qos. Executing a manipulation can lead to os command injection. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.
Affected products (as reported)
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-344777 | D-Link DIR-823X set_qos sub_420688 os command injection vdb-entry, technical-description
- VDB-344777 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #747428 | D-Link DIR-823X 250416 OS Command Injection third-party-advisory
- https://github.com/master-abc/cve/issues/29 exploit, issue-tracking
- https://www.dlink.com/ product