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Medium severity4.9NVD Advisory· Published Sep 16, 2026· Updated Sep 28, 2026

CVE-2026-76431

CVE-2026-76431

Description

A vulnerability in the file management function of the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to delete arbitrary files and directories on an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials.

This vulnerability is due to improper validation of directory traversal character sequences in a user-supplied file path before the request is validated. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to delete arbitrary files and directories on the underlying operating system of the affected device.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

44
  • Cisco Systems, Inc./Identity Services Engine Software23 versions
    cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:*+ 22 more
    • cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:*range: >=3.1.0,<3.3.0
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch10:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch11:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch1:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch2:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch3:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch4:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch5:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch6:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch7:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch8:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch9:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:-:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch1:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch2:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch3:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch4:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch5:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch6:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.5.0:-:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch1:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch2:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch3:*:*:*:*:*:*
  • Cisco Systems, Inc./Identity Services Engine Passive Identity Connector19 versions
    cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:*:*:*:*:*:*:*:*+ 18 more
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:*:*:*:*:*:*:*:*range: >=3.1.0,<3.3.0
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch10:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch11:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch1:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch2:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch3:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch4:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch5:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch6:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch7:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch8:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch9:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:-:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch1:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch2:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch3:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch4:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch5:*:*:*:*:*:*
    • cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch6:*:*:*:*:*:*
  • Cisco Systems, Inc./ISEllm-fuzzy
  • Cisco Systems, Inc./ISE-PICllm-fuzzy

Patches

Vulnerability mechanics

References

1

News mentions

2