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CVE-2026-76427

Cisco ISE XML External Entity Injection Vulnerability

Published: Sep 16, 2026Updated: Sep 18, 2026 Sources: CVE List NVDCWE-611
4.9MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 73.1%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
No Fix Available
Self-Check
Not available

Description

A vulnerability in the offline profiler feed service of Cisco ISE could allow an authenticated, remote attacker to read arbitrary files that are stored on an affected device. This vulnerability is due to the parsing of attacker-controlled feed metadata with an XML parser that does not disable external entity resolution. An attacker could exploit this vulnerability by uploading a crafted offline feed package through the administrative interface. A successful exploit could allow the attacker to read arbitrary files from the file system and issue requests to internal systems from the affected device. To exploit this vulnerability, the attacker must have valid administrative credentials.

In plain language

AI Act now

This affects Cisco Identity Services Engine software; an attacker with an administrator account may be able to read sensitive files, and no vendor fix information is available.

Executive summary

Authenticated remote XML external entity injection in Cisco ISE’s offline profiler feed service lets an administrator-uploaded crafted feed read arbitrary local files and make requests to internal systems.

If affected, business impact
Sensitive file exposureInternal system probingIdentity service riskAdministrative account abuse

What to do now

  1. Check whether you run Cisco Identity Services Engine software and whether administrators can upload offline profiler feed packages.
  2. Restrict administrator accounts to essential staff, remove unused accounts, and require strong sign-in protection for remaining administrators.
  3. No fixed version has been published in the available findings; ask Cisco or your support partner for the applicable fixed release before upgrading.
  4. Until a fix is available, disable or tightly control offline profiler feed uploads and review administrator activity for unexpected uploads.
May need vendor / contractor work

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:NA:N
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:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-611

Affected Products

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

2 techniques
Collection
Initial Access
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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