CVE-2026-76454: critical vulnerability in Cisco License On-Prem
Cisco Smart Software Manager On-Prem Unauthenticated API Vulnerability
Published
25Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1
exploitation probability
—
observed exploitation
nono source reports it
A vulnerability in the Cisco Smart Licensing Utility API of Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), could allow an unauthenticated, remote attacker to write arbitrary files to the system or cause a DoS condition on an affected application.
This vulnerability is due to improper input validation and a lack of authentication in the management API. An attacker could exploit this vulnerability by sending a crafted request to the affected API. A successful exploit could allow the attacker to modify system files or cause a DoS condition.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Affected products
Cisco · Cisco License On-PremRelated CVEs — Cisco License On-Prem
In the same product, most dangerous first.
CVE-2026-76484HIGHCisco License On-Prem Security Hardening ReleaseEPSS —CVE-2026-76483CRITICALCisco License On-Prem Security Hardening ReleaseEPSS —CVE-2026-76482CRITICALCisco License On-Prem Security Hardening ReleaseEPSS —CVE-2026-76480CRITICALCisco License On-Prem Security Hardening ReleaseEPSS —CVE-2026-76437MEDIUMCisco Smart Software Manager On-Prem Command Injection VulnerabilityEPSS —CVE-2026-76452MEDIUMCisco Smart Software Manager On-Prem SQL Injection VulnerabilityEPSS —