CVE-2026-76428 Cisco CVE debrief

Who should care

Defenders responsible for Cisco ISE and Cisco ISE-PIC systems should assess exposure and potential impact on sensitive data and system integrity. This includes operators, platform administrators, vulnerability management teams, and security teams. They should prioritize verifying exposure, assessing potential impact, and implementing compensating controls to limit potential damage.

Why it matters

CVE-2026-76428 is a SQL injection vulnerability in Cisco ISE and Cisco ISE-PIC that allows an authenticated, remote attacker to read information from the session database. Defenders should prioritize verifying exposure and assessing potential impact on sensitive data and system integrity.

• Read information from the session database
• Potential data exposure through SQL injection

Technical summary

The REST APIs of Cisco ISE and Cisco ISE-PIC are vulnerable to SQL injection attacks due to certain parameters being concatenated directly into SQL clauses without parameterization. This allows an authenticated, remote attacker to read information from the session database. The vulnerability can be exploited by sending a crafted request that contains SQL statements in one of the affected parameters. Defenders should prioritize verifying exposure and assessing potential impact on sensitive data and system integrity.

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 sensitive data and system integrity
• Implement compensating controls to limit potential damage
• Review vendor guidance and apply patches or updates
• Monitor for suspicious activity and review logs
• Track exceptions and retest remediated assets
• Close the item only after evidence is documented

Evidence notes

The CVE record and NVD entry provide details on the SQL injection vulnerability in Cisco ISE and Cisco ISE-PIC. The vulnerability allows an authenticated, remote attacker to conduct SQL injection attacks against the session database. Evidence is limited to the information provided in the CVE record and NVD entry. Defenders should verify exposure and assess potential impact on sensitive data and system integrity.

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.