CVE-2020-3369

HIGH

Cisco SD-WAN vEdge Routers - DoS

Title source: llm

Description

A vulnerability in the deep packet inspection (DPI) engine of Cisco SD-WAN vEdge Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper processing of FTP traffic. An attacker could exploit this vulnerability by sending crafted FTP packets through an affected device. A successful exploit could allow the attacker to make the device reboot continuously, causing a DoS condition.

References (1)

[Vendor Advisory] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fpdos-hORBfd9f

Scores

CVSS v3 7.5

EPSS 0.0116

EPSS Percentile 78.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-118

Status published

Affected Products (5)

cisco/sd-wan_firmware

cisco/vedge_cloud_router

Timeline

Published Jul 16, 2020

Tracked Since Feb 18, 2026