PT-2026-33087 · Cisco · Cisco Ise+1
Published
2026-04-15
·
Updated
2026-06-09
·
CVE-2026-20147
CVSS v3.1
9.9
Critical
| Vector | AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Cisco ISE versions 3.1 through 3.5
Cisco ISE-PIC (affected versions not specified)
Description
An issue in the web interface of the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) allows an authenticated remote attacker to execute arbitrary commands on the underlying operating system. This is caused by insufficient validation of user-supplied input and a lack of data sanitization at the management level. An attacker with valid administrative credentials, including read-only access, can exploit this by sending a crafted HTTP request. Successful exploitation provides user-level access to the operating system, which can then be elevated to root privileges. In single-node ISE deployments, this may lead to a denial of service (DoS) condition, preventing unauthenticated endpoints from accessing the network until the node is restored.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
RCE
Command Injection
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Weakness Enumeration
Related Identifiers
Affected Products
Cisco Ise
Cisco Ise-Pic