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Critical · 9.8 CVE-2021-47854 EUVD-2026-3629GHSA-fmvf-xj4m-jpwf

DD-WRT 45723 - UPNP Buffer Overflow

Published Jan 21, 2026 · Updated Jul 28, 2026 · Assigned by VulnCheck

Description

DD-WRT version 45723 contains a buffer overflow vulnerability in the UPNP network discovery service that allows remote attackers to potentially execute arbitrary code. Attackers can send crafted M-SEARCH packets with oversized UUID payloads to trigger buffer overflow conditions on the target device.

Affected products

VendorProductAffectedFixed
embeDD DD-WRT 45723 —

References