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CVE-2026-76427: Cisco ISE XML External Entity Injection Vulnerability
- Severity: medium (CVSS 4.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-16 · updated 2026-09-28
- Weakness: CWE-611
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.
Affected products
- Cisco Identity Services Engine: from 3.1.0 before 3.3.0; 3.3.0-patch1, 3.3.0-patch10, 3.3.0-patch11, 3.3.0-patch2, 3.3.0-patch3, 3.3.0-patch4 (+16) — fixed in 3.3.0
How to fix
Upgrade to a fixed version: Cisco Identity Services Engine 3.3.0. Check the vendor advisory for mitigations.
In the news
References
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