Detections
Analytics
Cisco Catalyst SD-WAN Software Security Hardening (cisco-sa-hardening-sdwan-faLcR3K)
critical Nessus Plugin ID 333337
Synopsis
The remote device is missing a vendor-supplied security patch.Description
According to its self-reported version, Cisco SD-WAN Viptela Software is affected by multiple vulnerabilities.- Multiple vulnerabilities in Cisco Catalyst SD-WAN Software could allow an authenticated, remote attacker to conduct path traversal attacks, gain unauthorized access, or cause a denial of service condition. These vulnerabilities are due to improper input validation, improper access control, improper link resolution before file access, cleartext storage of sensitive information, and improper validation of specified quantity in input. (CVE-2026-20294, CVE-2026-20303, CVE-2026-20304, CVE-2026-20310, CVE-2026-20312, CVE-2026-20313)
Please see the included Cisco Security Advisory for more information.
Solution
Upgrade to the relevant fixed version referenced in Cisco advisory cisco-sa-hardening-sdwan-faLcR3K:- 20.9.10
- 20.12.8.1
- 20.15.6
- 20.18.4
- 26.1.2
See Also
Plugin Details
Severity: Critical
ID: 333337
File Name: cisco-sa-hardening-sdwan-faLcR3K.nasl
Version: 1.1
Type: Local
Family: CISCO
Published: 8/7/2026
Updated: 8/7/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5
Percentile: 93.89
CVSS v2
Risk Factor: High
Base Score: 9
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2026-20303
CVSS v3
Risk Factor: Critical
Base Score: 9.9
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Vulnerability Information
CPE: cpe:/o:cisco:sd-wan_firmware
Required KB Items: Cisco/Viptela/Version
Patch Publication Date: 8/5/2026
Vulnerability Publication Date: 8/5/2026
Reference Information
CVE: CVE-2026-20294, CVE-2026-20303, CVE-2026-20304, CVE-2026-20310, CVE-2026-20312, CVE-2026-20313