Vulnerability · Published Sep 14, 2026 · Assigned by VulDB
CVE-2026-90702D-Link DWR-M921 formDiskFormat system os command injection
Critical 9.1
In plain English
A critical-severity OS command injection in DWR-M921 from D-Link. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 3.6% (higher than 90% of all known vulnerabilities).
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)3.6%top 10.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A flaw has been found in D-Link DWR-M921 1.1.52. Impacted is the function system of the file /boafrm/formDiskFormat. This manipulation of the argument partition causes os command injection. The attack may be initiated remotely. The exploit has been published and may be used.
Affected products (as reported)
Weakness: CWE-78, CWE-77 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-403244 | D-Link DWR-M921 formDiskFormat system os command injection vdb-entry, technical-description
- VDB-403244 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-90702 | CVE Analysis and Report third-party-advisory
- Submit #917692 | D-Link Router D-Link DWR-M921 V1.1.52 Command Injection third-party-advisory
- https://gist.github.com/H3rmesk1t/1f7efbf4584ce13222e8b0c669e7784a exploit
- https://www.dlink.com/ product