CVE-2026-20310
CriticalCVSS 9.1Summary
Vulnerability in Cisco Catalyst SD-WAN related to improper link resolution before file access (CWE-59). Discovered during internal security review, addressed in a software hardening release.
Risk Assessment
Potential unauthorized file access or privilege escalation in the SD-WAN environment.
Recommendation
Apply the latest Cisco Catalyst SD-WAN software hardening release that includes fixes for this vulnerability.
Original NVD description (English source)
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-2026-20310 are related to improper link resolution before file access issues that are grouped under the Common Weakness Enumeration (CWE) CWE-59.