CVE-2026-76444 Cisco CVE debrief

Who should care

Network administrators and security teams responsible for Cisco ISE and Cisco ISE-PIC deployments should assess exposure and apply necessary mitigations as per Cisco's security advisory. They should also monitor network activity for suspicious requests and review compensating controls for exposed systems.

Why it matters

CVE-2026-76444 is a medium-severity vulnerability in Cisco ISE and Cisco ISE-PIC that allows unauthenticated retrieval of sensitive configuration information. Network administrators and security teams should assess exposure, apply Cisco's security advisory, and monitor network activity for suspicious requests.

• Potential exposure of sensitive configuration information.
• Requires verification of affected versions and deployments.
• Remediation priority for network administrators and security teams.

Technical summary

The vulnerability (CVE-2026-76444) in Cisco ISE and Cisco ISE-PIC is caused by missing authentication on the Policy Runtime Repository Table (PRRT) service. This allows unauthenticated, remote attackers to retrieve sensitive configuration information by sending a crafted request to an affected device. The vulnerability has a medium severity and requires immediate attention from network administrators and security teams. Cisco has provided a security advisory (cisco-sa-ise-multiauth-bypass-sgD2HbL4) addressing this issue.

Defensive priority

Medium-priority vulnerability requiring immediate attention from network administrators and security teams.

Recommended defensive actions

• Review and apply Cisco's security advisory (cisco-sa-ise-multiauth-bypass-sgD2HbL4) to address the vulnerability.
• Restrict access to the Policy Runtime Repository Table (PRRT) service.
• Monitor network activity for suspicious requests to the affected devices.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The vulnerability has been reported in Cisco ISE and Cisco ISE-PIC. Cisco has provided a security advisory (cisco-sa-ise-multiauth-bypass-sgD2HbL4) addressing this issue. The advisory provides guidance on affected versions, deployments, and necessary mitigations. Defenders should verify the affected scope and apply the recommended patches or mitigations.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.