Cisco SD-WAN Buffer Overflow Vulnerabilities (cisco-sa-sdwan-bufovulns-B5NrSHbj)

critical Nessus Plugin ID 147963
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The remote device is missing a vendor-supplied security patch.


According to its self-reported version, Cisco SD-WAN products are affected by multiple buffer overflow vulnerabilities that allow an unauthenticated, remote attacker to execute attacks against an affected device.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.


Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvi69895, CSCvt11525

See Also

Plugin Details

Severity: Critical

ID: 147963

File Name: cisco-sa-sdwan-bufovulns-B5NrSHbj.nasl

Version: 1.5

Type: local

Family: CISCO

Published: 3/23/2021

Updated: 3/24/2021

Dependencies: cisco_vedge_detect.nbin

Risk Information

CVSS Score Source: CVE-2021-1300


Risk Factor: Medium

Score: 6.7


Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:sd-wan_firmware

Required KB Items: Cisco/Viptela/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 1/20/2021

Vulnerability Publication Date: 1/20/2021

Reference Information

CVE: CVE-2021-1300, CVE-2021-1301

IAVA: 2021-A-0045

CISCO-BUG-ID: CSCvi69895, CSCvt11525

CISCO-SA: cisco-sa-sdwan-bufovulns-B5NrSHbj