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CVE-2026-76424

Cisco ISE Arbitrary File Access Vulnerability

Published: Sep 16, 2026Updated: Sep 18, 2026 Sources: CVE List NVDCWE-23
7.2HIGH
NVD MITRE
EPSS Score
0.6%
Top 51.8%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
No Fix Available
Self-Check
Not available

Description

A vulnerability in the REST API of Cisco ISE could allow an authenticated, remote attacker to upload or copy arbitrary files on an affected device. This vulnerability is due to insufficient validation in file operations. An attacker could exploit this vulnerability by uploading a file with a crafted path. A successful exploit could allow the attacker to upload files to arbitrary locations and execute arbitrary commands as root on the affected device. To exploit this vulnerability, the attacker must have valid administrative credentials.

In plain language

AI Act now

Cisco Identity Services Engine Software has a serious flaw that lets someone with administrator access take control of the system; typical small businesses using it should act now, but no fixed version is currently known.

Executive summary

Authenticated remote path traversal in the Cisco ISE REST API allows an administrator to upload or copy files to arbitrary paths and execute commands as root.

If affected, business impact
Full system takeoverNetwork access disruptionSecurity policy changesSensitive file exposureRansomware risk

What to do now

  1. Check whether your organization runs Cisco Identity Services Engine Software and identify every system that uses its REST API.
  2. Review administrator accounts immediately; remove unused accounts, require strong multi-factor sign-in, and rotate credentials that may be shared or exposed.
  3. No fixed version has been published in the available findings; ask Cisco or your support provider for the vendor advisory and remediation timeline.
  4. Until a fix is available, restrict administrator access to trusted management networks and investigate unexpected file changes or administrator activity.
May need vendor / contractor work

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-23

Affected Products

Cisco
commercial·USaka cisco systems, cisco systems inc.
Cisco Identity Services Engine Software
Networking Infrastructure

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Discovery
View detailed technique mapping

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-hrP9jQSQ
sec.cloudapps.cisco.com
News mentions
1

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