CVE-2020-3385: A vulnerability in the deep packet inspection (DPI) engine of Cisco SD-WAN vEdge Routers could allow an unauthenticated, adjacent attacker to cause a denial of…

PriorityP426medium6.5CVSS 3.1

AVAACLPRNUINSUCNINAH

EPSS

0.53%

41.5th percentile

A vulnerability in the deep packet inspection (DPI) engine of Cisco SD-WAN vEdge Routers could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability is due to insufficient handling of malformed packets. An attacker could exploit this vulnerability by sending crafted packets through an affected device. A successful exploit could allow the attacker to cause the device to reboot, resulting in a DoS condition.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_sd-wan_vedge_router	—	—
cisco	sd-wan_firmware	<= 18.3.0	—
cisco	sd-wan_firmware	>= 18.4.0 < 18.4.5	18.4.5
cisco	sd-wan_firmware	>= 19.2.0 < 19.2.3	19.2.3
cisco	sd-wan_firmware	>= 19.3.0 < 20.1.1	20.1.1
cisco	sd-wan_vedge_routers	—	—

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvdv3.07.4HIGHCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

nvdv2.06.1MEDIUMAV:A/AC:L/Au:N/C:N/I:N/A:C

vendor_cisco7.4HIGH

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.