Unauthenticated hashed-credential disclosure via authorization bypass
Published Jun 17, 2026 · Updated Jun 17, 2026
Improper authorization in Cisco ISE and ISE-PIC allows remote attackers to read sensitive data via crafted network traffic. Cisco has not identified the resource, but states that its access path performs improper authorization checks and returns information including hashed credentials. No authentication or special configuration is required, and the reported consequence is limited to disclosure rather than data modification or service interruption.
Summary
What happened
Improper authorization in Cisco ISE and ISE-PIC allows remote attackers to read sensitive data via crafted network traffic. Cisco has not identified the resource, but states that its access path performs improper authorization checks and returns information including hashed credentials. No authentication or special configuration is required, and the reported consequence is limited to disclosure rather than data modification or service interruption.
The record
- CVE
- CVE-2026-20190
- Published
- Jun 17, 2026
- Updated
- Jun 17, 2026
- Vendor
- ClamAV
- Product
- Cisco Identity Services Engine
- Classifications
- CWE-285, T1003
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 17, 2026CVE publishedPublication date reported by the CVE source.
- Jun 17, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=3.4.0
- Affected versionversion=3.4 Patch 1
- Affected versionversion=3.4 Patch 2
- Affected versionversion=3.4 Patch 3
- Affected versionversion=3.4 Patch 4
- Affected versionversion=3.4 Patch 5
- Affected versionversion=3.5.0
- Affected versionversion=3.5 Patch 1
- Affected versionversion=3.5 Patch 2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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