CVE-2026-108971 D-Link DCS-930L Emergency HTTP Recovery Server bootloader_region.bin mpfd_decode signature verification
Remote attackers can bypass cryptographic signature verification in the D-Link DCS-930L emergency recovery server to execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-108971?
CVE-2026-108971 is a critical vulnerability in D-Link DCS-930L, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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.
Which versions are affected by CVE-2026-108971?
How do I fix CVE-2026-108971?
No fix has been published for CVE-2026-108971 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-108971 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108971 exists.
Sources
Also known as GHSA-5vhf-mw8w-298v.