Major Cisco ISE Authentication Bypass Vulnerability Impacts AWS, Azure, and OCI Cloud Deployments
TL;DR
Cisco has patched a critical authentication bypass flaw in Identity Services Engine (ISE) affecting cloud deployments on AWS, Azure, and OCI. The vulnerability, tracked as CVE-2025-20286, has a CVSS score of 9.9 and allows unauthenticated actors to perform malicious actions.
Critical Cisco ISE Authentication Bypass Flaw
Cisco has released crucial security patches to mitigate a severe vulnerability affecting the Identity Services Engine (ISE). This flaw, if exploited, enables unauthenticated actors to execute malicious activities on vulnerable systems. The issue, designated as CVE-2025-20286, is rated with a CVSS score of 9.9 out of 10, indicating its critical nature. The flaw is classified as a static credential vulnerability.
Key Details
- Vulnerability ID: CVE-2025-20286
- CVSS Score: 9.9
- Affected Systems: Cisco ISE deployments on AWS, Azure, and Oracle Cloud Infrastructure (OCI)
- Potential Impact: Unauthenticated access leading to malicious actions on compromised systems
Impact on Cloud Deployments
The vulnerability significantly impacts cloud deployments of Cisco ISE on major platforms including AWS, Azure, and OCI. Organizations utilizing these services should prioritize applying the security patches to safeguard their environments. Cisco has emphasized the urgency of addressing this flaw due to its high severity and potential for exploitation.
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Conclusion
The discovery and patching of the CVE-2025-20286 vulnerability underscore the importance of vigilant cybersecurity practices. Organizations relying on Cisco ISE for their cloud deployments must act swiftly to implement the necessary security updates. This incident serves as a reminder of the constant need for vigilance in protecting digital infrastructure against evolving threats.
Additional Resources
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