CVE-2026-20190: Improper Authorization in Cisco Cisco Identity Services Engine Software
A vulnerability in Cisco ISE and ISE-PIC could allow an unauthenticated, remote attacker to view sensitive information on an affected device. This vulnerability is due to improper authorization checks when a resource is accessed. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to gain access to sensitive information, including hashed credentials that could be used in future attacks.
AI Analysis
Technical Summary
This vulnerability in Cisco ISE and ISE-PIC arises from improper authorization checks when accessing certain resources. An unauthenticated remote attacker can exploit this by sending crafted traffic, potentially gaining access to sensitive information such as hashed credentials. The CVSS 3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and high confidentiality impact without integrity or availability impact. The affected versions explicitly identified are 3.4.0 and 3.5.0. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation allows an unauthenticated remote attacker to access sensitive information on the affected Cisco ISE device, including hashed credentials. This could facilitate further attacks leveraging the disclosed credentials. There is no indication of impact on system integrity or availability.
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 Cisco ISE management interfaces and monitor for suspicious traffic patterns targeting these devices.
CVE-2026-20190: Improper Authorization in Cisco Cisco Identity Services Engine Software
Description
A vulnerability in Cisco ISE and ISE-PIC could allow an unauthenticated, remote attacker to view sensitive information on an affected device. This vulnerability is due to improper authorization checks when a resource is accessed. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to gain access to sensitive information, including hashed credentials that could be used in future attacks.
CVSS v3.1
Score 7.5high
Affected software
pkg:github/cisco/identity-services-engineRun 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 in Cisco ISE and ISE-PIC arises from improper authorization checks when accessing certain resources. An unauthenticated remote attacker can exploit this by sending crafted traffic, potentially gaining access to sensitive information such as hashed credentials. The CVSS 3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and high confidentiality impact without integrity or availability impact. The affected versions explicitly identified are 3.4.0 and 3.5.0. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation allows an unauthenticated remote attacker to access sensitive information on the affected Cisco ISE device, including hashed credentials. This could facilitate further attacks leveraging the disclosed credentials. There is no indication of impact on system integrity or availability.
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 Cisco ISE management interfaces and monitor for suspicious traffic patterns targeting these devices.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisco
- Date Reserved
- 2025-10-08T11:59:15.395Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a32cb1b9f87a2db09260e38
Added to database: 6/17/2026, 4:28:11 PM
Last enriched: 6/17/2026, 4:42:37 PM
Last updated: 6/17/2026, 6:23:07 PM
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.