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CVE-2026-20303

criticalCVSS 9.9covered by 6 sourcesfirst seen 2026-08-05
A remote, authenticated attacker can exploit multiple vulnerabilities in Cisco Catalyst SD-WAN Manager to execute arbitrary code, bypass security measures, disclose confidential information, manipulate data, or elevate privileges.

CSIRTS triage

What
Multiple vulnerabilities allow authenticated attackers to execute arbitrary code, bypass security measures, disclose information, manipulate data, and escalate privileges.
Who is affected
Cisco Catalyst SD-WAN Manager deployments accessible to authenticated users.
Urgency
High severity with authenticated code execution and privilege escalation requires urgent patching.
Action
Apply available Cisco Catalyst SD-WAN Manager security updates.

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Exploitation outlook

Advisory coverage (6)

External references

NVD record for CVE-2026-20303

CVE.org record

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