CVE-2026-76454: Relative Path Traversal in Cisco Cisco License On-Prem
Description
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 v3.1
Score 9.1critical
Affected software
Cisco
Cisco License On-Prem
pkg:github/cisco/license-on-premRun 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 License On-Prem's Smart Licensing Utility API arises from improper input validation and absence of authentication controls. An unauthenticated remote attacker can exploit this by sending crafted requests to the management API, enabling arbitrary file writes or causing a DoS condition on the affected application. The CVSS 3.1 base score is 9.1, reflecting network attack vector, low complexity, no privileges or user interaction required, and high impact on integrity and availability.
Potential Impact
Successful exploitation can lead to modification of system files or denial of service on the affected application, potentially disrupting licensing management and related operations. There is no indication of confidentiality impact. The vulnerability is critical due to the high integrity and availability impacts combined with unauthenticated remote access.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided in the input data. Until a patch is available, restrict access to the management API to trusted networks and monitor for suspicious requests targeting the API.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisco
- Date Reserved
- 2026-08-19T12:02:03.636Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac674882cdf04f656647328
Added to database: 10/07/2026, 16:34:16 UTC
Last enriched: 10/07/2026, 17:03:20 UTC
Last updated: 10/08/2026, 05:48:07 UTC
Views: 14
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