Cisco ISE XML External Entity Injection Vulnerability
Summary
| CVE | CVE-2026-76427 |
|---|---|
| State | PUBLISHED |
| Assigner | cisco |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-16 21:17:14 UTC |
| Updated | 2026-09-28 13:01:50 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 4.9 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.004590000 probability, percentile 0.373080000 (date 2026-09-29)
Problem Types: CWE-611 | CWE-611 Improper Restriction of XML External Entity Reference
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 4.9 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | CNA | CVSSV3_1 | 4.9 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
HighUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Cisco | Identity Services Engine | All | All | All | All |
| Application | Cisco | Identity Services Engine | 3.3.0 | patch1 | All | All |
| Application | Cisco | Identity Services Engine | 3.3.0 | patch10 | All | All |
| Application | Cisco | Identity Services Engine | 3.3.0 | patch11 | All | All |
| Application | Cisco | Identity Services Engine | 3.3.0 | patch2 | All | All |
| Application | Cisco | Identity Services Engine | 3.3.0 | patch3 | All | All |
| Application | Cisco | Identity Services Engine | 3.3.0 | patch4 | All | All |
| Application | Cisco | Identity Services Engine | 3.3.0 | patch5 | All | All |
| Application | Cisco | Identity Services Engine | 3.3.0 | patch6 | All | All |
| Application | Cisco | Identity Services Engine | 3.3.0 | patch7 | All | All |
| Application | Cisco | Identity Services Engine | 3.3.0 | patch8 | All | All |
| Application | Cisco | Identity Services Engine | 3.3.0 | patch9 | All | All |
| Application | Cisco | Identity Services Engine | 3.4.0 | - | All | All |
| Application | Cisco | Identity Services Engine | 3.4.0 | patch1 | All | All |
| Application | Cisco | Identity Services Engine | 3.4.0 | patch2 | All | All |
| Application | Cisco | Identity Services Engine | 3.4.0 | patch3 | All | All |
| Application | Cisco | Identity Services Engine | 3.4.0 | patch4 | All | All |
| Application | Cisco | Identity Services Engine | 3.4.0 | patch5 | All | All |
| Application | Cisco | Identity Services Engine | 3.4.0 | patch6 | All | All |
| Application | Cisco | Identity Services Engine | 3.5.0 | - | All | All |
| Application | Cisco | Identity Services Engine | 3.5.0 | patch1 | All | All |
| Application | Cisco | Identity Services Engine | 3.5.0 | patch2 | All | All |
| Application | Cisco | Identity Services Engine | 3.5.0 | patch3 | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-mu... | [email protected] | sec.cloudapps.cisco.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Exploits
CNA: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.
There are currently no legacy QID mappings associated with this CVE.