CVE-2026-76426 Cisco CVE debrief

Who should care

Defenders responsible for Cisco ISE and Cisco ISE-PIC systems should assess exposure and potential impact. This includes verifying system configurations and inventory, assessing potential impact on monitoring database, and applying vendor remediation when available.

Why it matters

Defenders should prioritize verifying exposure and assessing potential impact of SQL injection attacks against monitoring database in Cisco ISE and Cisco ISE-PIC systems.

• Read information from monitoring database

Technical summary

A vulnerability in the REST API of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct SQL injection attacks against the monitoring database. This vulnerability is due to insufficient validation of specific parameters that are then concatenated into an SQL statement. An attacker could exploit this vulnerability by sending a crafted request that contains SQL statements in one of the affected parameters. A successful exploit could allow the attacker to read information from the monitoring database.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact.

Recommended defensive actions

• Verify exposure by checking system configurations and inventory
• Assess potential impact on monitoring database
• Apply vendor remediation when available
• 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the SQL injection vulnerability in Cisco ISE and Cisco ISE-PIC. The vulnerability is due to insufficient validation of specific parameters that are then concatenated into an SQL statement. The CVE record was published on 2026-09-16T21:17:14.240Z and has not been modified since then. The NVD entry provides additional information on the vulnerability, including its CVSS score and severity.

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.