CVE-2021-47854

High CVSS: 8.7

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.

Vendor

Product

CWE

CWE-120

Yayın Tarihi

2026-01-21 18:16:15

Güncelleme

2026-01-26 15:04:59

Source Identifier

disclosure@vulncheck.com

KEV Date Added

Kategoriler

CWE-120 HIGH 2026

Referanslar

https://dd-wrt.com/ https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2021/ https://ssd-disclosure.com/ssd-advisory-dd-wrt-upnp-buffer-overflow/ https://www.exploit-db.com/exploits/49730 https://www.vulncheck.com/advisories/dd-wrt-upnp-buffer-overflow