D-Link DWR-M921 command injection via disk format endpoint
D-Link DWR-M921 firmware 1.1.52 passes the partition argument from /boafrm/formDiskFormat to the system shell without sanitization, enabling OS command injection. CVSS 9.1 critical.
- Vendor
- D-Link
- Product
- DWR-M921 (firmware 1.1.52)
- CVSS
- 9.1
- EPSS (exploit probability)
- 3.6%
- Status
- unpatched
- Published
Is CVE-2026-90702 being exploited?
Not on any exploited-vulnerability catalog we track. CVE-2026-90702 was not on the CISA, ENISA or CIRCL exploited catalogs as of our 2026-11-05 snapshot. That can change quickly; check the write-up below for the latest reporting.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 3.6% (scored October 14, 2026).
- CISA KEV[ — ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-11-05. Full cross-catalog view: /kev-comparison
CVE-2026-90702 timeline
Every event links to its source. Catalog dates are each catalog's own; day offsets count from NVD publication. Data: JSON
D-Link DWR-M921 firmware version 1.1.52 contains an OS command injection vulnerability in the system function handling /boafrm/formDiskFormat. The partition parameter reaches the system shell unsanitized, allowing an attacker to execute arbitrary OS commands through the router’s BOA web server.
No official D-Link advisory or firmware update had been published as of September 16, 2026. Restricting access to the router’s web management interface to trusted hosts reduces exposure while a patch is pending.
See the NVD entry for the full record.
Other D-Link CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2026-86296 D-Link DIR-822A Maximum Severity Zero-Day Vulnerabilitywrite-up | [ CRITICAL ] | 10.0 | 2.4% | — |
| CVE-2026-90703 D-Link DWR-M921 command injection via disk share creation endpointwrite-up | [ CRITICAL ] | 9.1 | 3.6% | — |
| CVE-2026-90699 D-Link DWR-M920 command injection via SIM PIN management endpointwrite-up | [ CRITICAL ] | 9.9 | 3.3% | — |
| CVE-2025-29635 D-Link DIR-823X Command Injection Vulnerability | [ HIGH ] | 7.2 | 87.9% | |
| CVE-2022-37055 D-Link Routers Buffer Overflow Vulnerability | [ CRITICAL ] | 9.8 | 55.5% | |
| CVE-2022-40799 D-Link DNR-322L Download of Code Without Integrity Check Vulnerability | [ HIGH ] | 8.8 | 33.7% | |
| CVE-2020-25079 D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability | [ HIGH ] | 8.8 | 54.0% | |
| CVE-2020-25078 D-Link DCS-2530L and DCS-2670L Devices Unspecified Vulnerability | [ HIGH ] | 7.5 | 97.5% |
