CVE-2026-20313

HIGH

Cisco Catalyst SD-WAN Security Hardening Release - Memory Corruption Vulnerabilities

Title source: cna
STIX 2.1

Description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Catalyst SD-WAN engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20313 are related to Improper link resolution before file access issues that are grouped under the Common Weakness Enumeration (CWE) CWE-1284.

References (1)

Core 1

Scores

CVSS v3 7.7
EPSS 0.0025
EPSS Percentile 16.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-1284
Status published
Products (50)
Cisco/Cisco Catalyst SD-WAN Controller 17.2.10
Cisco/Cisco Catalyst SD-WAN Controller 17.2.4
Cisco/Cisco Catalyst SD-WAN Controller 17.2.5
Cisco/Cisco Catalyst SD-WAN Controller 17.2.6
Cisco/Cisco Catalyst SD-WAN Controller 17.2.7
Cisco/Cisco Catalyst SD-WAN Controller 17.2.8
Cisco/Cisco Catalyst SD-WAN Controller 17.2.9
Cisco/Cisco Catalyst SD-WAN Controller 18.2.0
Cisco/Cisco Catalyst SD-WAN Controller 18.3.0
Cisco/Cisco Catalyst SD-WAN Controller 18.3.1
... and 40 more
Published Aug 05, 2026
Tracked Since Aug 05, 2026