Hermes CTI

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CVE-2026-20182

● HIGH Confidence: 100% · Version 1

Executive summary

Public evidence documents CVE-2026-20182. This report does not assess any organization.

Technical analysis

Cisco Catalyst SD-WAN Controller & Manager contain an authentication bypass vulnerability that allows an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system.

Evidence and sources

Public evidence for CVE-2026-20182 with preserved provenance.

Authoritative Source Advisories
Verified Evidence Claims

CVE-2026-20182 Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability Cisco Catalyst SD-WAN Controller & Manager contain an authentication bypass vulnerability that allows an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system.

100% Confidence Analysis 🔍

IOCs

No public IOC is available.

CVEs and affected products

Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability

ATT&CK mapping

No ATT&CK mapping is available.

Detection content

Sigma rules, YARA rules, Splunk SPL, and KQL detection logic.

Open dedicated detections page →

Threat hunting

Hypothesis-driven hunt procedures and telemetry checklist.

Open dedicated hunt page →

Remediation

Containment actions, patching notes, and credential steps.

Open dedicated remediation page →

Historical relationships

No published historical relationship is available.

Timeline and change history

Public source record: Public source record for CVE-2026-20182.

Confidence and caveats

1.0

⚠️ Public CTI only; no organizational exposure is asserted.

⚠️ CVSS and EPSS metadata were not present in the retrieved evidence payload.