Vulnpedia
← All CVEs

CVE-2026-76431

MEDIUM 4.9 ALL-YEARS

Published 2026-09-16 · Last modified 2026-09-19 · cisco · NVD: Analyzed

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.

LIMITED SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

1.2%chance of exploitation in 30 days · 68th percentile

○ In CISA KEV○ Public exploit / PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

4.9CVSS 3.1 · MEDIUM · CNA

  • ConfidentialityNone
  • IntegrityHigh
  • AvailabilityNone

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ⚠Privileges: Requires an admin / high-privilege account
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept & exploit code

No public exploit or proof-of-concept code is catalogued for this CVE (no ExploitDB, Nuclei, or CISA-KEV entry). It may still exist — search GitHub or check the references below.

Affected

Vendors Cisco

Products Cisco Identity Services Engine Software Cisco Ise Passive Identity Connector Identity Services Engine Identity Services Engine Passive Identity Connector

Weakness (CWE)

  • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Known Affected Software Configurations

VendorProductVersion range
CiscoIdentity Services Engine≥ 3.1.0 and < 3.3.0
CiscoIdentity Services Engine3.3.0
CiscoIdentity Services Engine3.3.0
CiscoIdentity Services Engine3.3.0
CiscoIdentity Services Engine3.3.0
CiscoIdentity Services Engine3.3.0
CiscoIdentity Services Engine3.3.0
CiscoIdentity Services Engine3.3.0
CiscoIdentity Services Engine3.3.0
CiscoIdentity Services Engine3.3.0
CiscoIdentity Services Engine3.3.0
CiscoIdentity Services Engine3.3.0
CiscoIdentity Services Engine3.4.0
CiscoIdentity Services Engine3.4.0
CiscoIdentity Services Engine3.4.0
CiscoIdentity Services Engine3.4.0
CiscoIdentity Services Engine3.4.0
CiscoIdentity Services Engine3.4.0
CiscoIdentity Services Engine3.4.0
CiscoIdentity Services Engine3.5.0
CiscoIdentity Services Engine3.5.0
CiscoIdentity Services Engine3.5.0
CiscoIdentity Services Engine3.5.0
CiscoIdentity Services Engine Passive Identity Connector≥ 3.1.0 and < 3.3.0
CiscoIdentity Services Engine Passive Identity Connector3.3.0
CiscoIdentity Services Engine Passive Identity Connector3.3.0
CiscoIdentity Services Engine Passive Identity Connector3.3.0
CiscoIdentity Services Engine Passive Identity Connector3.3.0
CiscoIdentity Services Engine Passive Identity Connector3.3.0
CiscoIdentity Services Engine Passive Identity Connector3.3.0
CiscoIdentity Services Engine Passive Identity Connector3.3.0
CiscoIdentity Services Engine Passive Identity Connector3.3.0
CiscoIdentity Services Engine Passive Identity Connector3.3.0
CiscoIdentity Services Engine Passive Identity Connector3.3.0
CiscoIdentity Services Engine Passive Identity Connector3.3.0
CiscoIdentity Services Engine Passive Identity Connector3.4.0
CiscoIdentity Services Engine Passive Identity Connector3.4.0
CiscoIdentity Services Engine Passive Identity Connector3.4.0
CiscoIdentity Services Engine Passive Identity Connector3.4.0
CiscoIdentity Services Engine Passive Identity Connector3.4.0
CiscoIdentity Services Engine Passive Identity Connector3.4.0
CiscoIdentity Services Engine Passive Identity Connector3.4.0

All CVSS metrics

  • MEDIUM 4.9 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
  • MEDIUM 4.9 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

References

Advisories

Sources: NVD · CVE.org · EPSS