| Title | D-Link Router D-Link DWR-M921 V1.1.52 Command Injection |
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| Description | A vulnerability has been found in D-Link DWR-M921 firmware V1.1.52. It can be triggered through the route /boafrm/formSysCmd. The manipulation of the argument sysCmd leads to OS command injection with no filtering whatsoever. The attack is possible remotely after authentication (default admin/admin).
formSysCmd is a hidden handler with no page reference (it does not appear in any .htm form), and was not covered by previously published DWR-M921 CVEs. Unlike other injection points (fota_url prefix check, host ;|& filter), this handler performs no filtering at all, making it the most direct command injection path. It exists only in the /bin/boa dispatch table of V1.1.52 (entry 0x4B9004). |
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| Source | ⚠️ https://gist.github.com/H3rmesk1t/42bca7c81530b8419811ddcbd39b3b56 |
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| User | H3rmesk1t (UID 70306) |
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| Submission | 08/06/2026 20:24 (1 month ago) |
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| Moderation | 09/13/2026 09:57 (1 month later) |
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| Status | Accepted |
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| VulDB entry | 403247 [D-Link DWR-M921 1.1.52 Boa Dispatch Table /boafrm/formsysCmd os command injection] |
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| Points | 20 |
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