by Kastro
Paper/Archive/CVE-2021-47854

CVE-2021-47854

embeDD GmbH DD-WRT — DD-WRT 45723 - UPNP Buffer Overflow

EPSS 1%public exploitCVSS 9.8
critical.is priorityof 100
52
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 65.2.652 × 2013.0Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
DD-WRT45723–CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitexploit-db.com/exploits/49730refdd-wrt.comrefdownload1.dd-wrt.com/dd-wrtv2/downloads/betas/2021writeupssd-disclosure.com/ssd-advisory-dd-wrt-upnp-buffer-overflowwriteupvulncheck.com/advisories/dd-wrt-upnp-buffer-overflow