CVE-2026-76444: Missing Authentication for Critical Function in Cisco Cisco Identity Services Engine Software
A vulnerability in an internal service of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to retrieve sensitive configuration information from an affected device. This vulnerability is due to missing authentication on the Policy Runtime Repository Table (PRRT) service. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to obtain sensitive configuration information from the affected device.
AI Analysis
Technical Summary
This vulnerability affects Cisco Identity Services Engine Software versions 3.4.0 and 3.5.0. The internal PRRT service lacks authentication controls, enabling unauthenticated remote attackers to send crafted requests that retrieve sensitive configuration data from the affected device. The CVSS 3.1 base score is 5.3, reflecting a network attack vector with low complexity and no privileges required. The impact is limited to confidentiality loss; integrity and availability are not affected.
Potential Impact
An unauthenticated remote attacker can obtain sensitive configuration information from the affected Cisco ISE device. This could potentially aid further attacks or reconnaissance but does not directly impact system integrity or availability. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to the affected service and monitor for unusual requests targeting the PRRT service. Follow Cisco's guidance when published.
CVE-2026-76444: Missing Authentication for Critical Function in Cisco Cisco Identity Services Engine Software
Description
A vulnerability in an internal service of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to retrieve sensitive configuration information from an affected device. This vulnerability is due to missing authentication on the Policy Runtime Repository Table (PRRT) service. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to obtain sensitive configuration information from the affected device.
CVSS v3.1
Score 5.3medium
Affected software
Cisco
Cisco Identity Services Engine Software
Cisco
Cisco ISE Passive Identity Connector
pkg:github/cisco/identity-services-engine-softwareRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Cisco Identity Services Engine Software versions 3.4.0 and 3.5.0. The internal PRRT service lacks authentication controls, enabling unauthenticated remote attackers to send crafted requests that retrieve sensitive configuration data from the affected device. The CVSS 3.1 base score is 5.3, reflecting a network attack vector with low complexity and no privileges required. The impact is limited to confidentiality loss; integrity and availability are not affected.
Potential Impact
An unauthenticated remote attacker can obtain sensitive configuration information from the affected Cisco ISE device. This could potentially aid further attacks or reconnaissance but does not directly impact system integrity or availability. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to the affected service and monitor for unusual requests targeting the PRRT service. Follow Cisco's guidance when published.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisco
- Date Reserved
- 2026-08-19T12:02:03.635Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aab006f55bf5e2cf5232036
Added to database: 09/16/2026, 20:47:43 UTC
Last enriched: 09/16/2026, 21:02:33 UTC
Last updated: 09/17/2026, 03:01:23 UTC
Views: 5
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