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Advisory severityCritical9.1Cisco Updated

Critical [CVE-2026-20328 +3] Cisco License (Smart Software Manager) On-Prem Vulnerabilities

This critical-severity Cisco advisory covers CVE-2026-20328 and CVE-2026-76437 and 2 more CVEs affecting License On-Prem.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 4 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.

cisco-sa-ssm-access-nttb2dhE Source published Source updated

VulniPulse record published Record updated

CVE-2026-20328CVE-2026-76437CVE-2026-76452CVE-2026-76454
Affected products & platforms
CiscoUnclassified
Open source advisory

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Summary

Multiple vulnerabilities in the web-based management interface and API endpoints of Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), could allow a remote attacker to gain unauthorized access, access sensitive information, cause a denial of service (DoS) condition, or elevate privileges.

For more information about these vulnerabilities, see the Details section of this advisory.

Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

For further documentation of improvements and fixes in Cisco License On-Prem, see Cisco License (Smart Software Manager) On-Prem Security Hardening Release.

Affected versions
  • Scope: These vulnerabilities affect Cisco License On-Prem, regardless of the software configuration. Previous releases of this software were called Cisco SSM On-Prem, and they are also affected.
  • 9-202601 and earlier — Migrate to a fixed release
  • Release Earlier than 10-202608 (first fixed: 10-202608)

Official advisory · high-confidence parse· fetched 10 hours ago·verify at source

Fixed versions
  • 10-202608

Official advisory · high-confidence parse· fetched 10 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Upgrade to the first fixed release for your train per the Fixed Releases table in this advisory.
  • Release 9-202601 and earlier: migrate to a fixed release.
  • Earlier than 10-202608: upgrade to 10-202608.
Workaround status
  • There are no workarounds that address these vulnerabilities.

Official advisory · high-confidence parse· fetched 10 hours ago·verify at source

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