CVE-2026-108971
D-Link DCS-930L Emergency HTTP Recovery Server bootloader_region.bin mpfd_decode signature verification
- State
- Published
- Severity
- 9.4 Critical
- Published
- Oct 13, 2026
- Updated
- Oct 14, 2026
- Reserved
- Oct 11, 2026
Description
A flaw has been found in D-Link DCS-930L B1.08B4. This impacts the function mpfd_decode of the file bootloader_region.bin of the component Emergency HTTP Recovery Server. Executing a manipulation of the argument firmware can lead to improper verification of cryptographic signature. The attack may be performed from remote. The exploit has been published and may be used.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.4 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P | VulDB |
| 3.1 | 9.6 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 9.6 Critical | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 10.0 High | AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
DCS-930LD-Link |
|
References
- VDB-416789 | D-Link DCS-930L Emergency HTTP Recovery Server bootloader_region.bin mpfd_decode signature verificationvdb-entrytechnical-description
- VDB-416789 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-108971 | CVE Analysis and Reportthird-party-advisory
- Submit #999605 | D-Link DCS-930L Network Camera B1.08B4 / firmware 1.08 Improper Verification of Cryptographic Signaturethird-party-advisory
- https://github.com/sweethub521/somevul/blob/main/dlink-dcs930l-bootloader-emergency-room-flash.mdexploit
- https://www.dlink.com/product
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