Vulnerability · Published Oct 13, 2026 · Assigned by VulDB

CVE-2026-108971D-Link DCS-930L Emergency HTTP Recovery Server bootloader_region.bin mpfd_decode signature verification

Critical 9.6

In plain English

A critical-severity insufficient verification of data authenticity in DCS-930L from D-Link. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 3.1)9.6Critical

Exploit odds (30 days)0.2%top 86.7% 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 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.

Affected products (as reported)

Vendor	Product	Versions
D-Link	DCS-930L	B1.08B4

Weakness: CWE-347, CWE-345 · Vector: 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

References

VDB-416789 | D-Link DCS-930L Emergency HTTP Recovery Server bootloader_region.bin mpfd_decode signature verification vdb-entry, technical-description
VDB-416789 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-108971 | CVE Analysis and Report third-party-advisory
Submit #999605 | D-Link DCS-930L Network Camera B1.08B4 / firmware 1.08 Improper Verification of Cryptographic Signature third-party-advisory
https://github.com/sweethub521/somevul/blob/main/dlink-dcs930l-bootloader-emergency-room-flash.md exploit
https://www.dlink.com/ product