PT-2026-33087 · Cisco · Cisco Ise-Pic+1

Published 2026-04-15 · Updated 2026-04-18 · CVE-2026-20147

Positive Technologies (AI Summary)

CVSS v3.1

9.9

Critical

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 (affected versions not specified) Cisco ISE-PIC (affected versions not specified)

Description Insufficient validation of user-supplied input allows an authenticated remote attacker with valid administrative credentials to execute arbitrary commands on the underlying operating system of an affected device. This is achieved by sending a crafted HTTP request. A successful exploit can grant user-level access to the operating system and subsequent privilege escalation to root. In single-node 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

Weakness Enumeration

CWE-77

Related Identifiers

BDU:2026-05528

CVE-2026-20147

Affected Products

Cisco Ise

Cisco Ise-Pic

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2026-20147 · Security Note
• https://bdu.fstec.ru/vul/2026-05528 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-rce-traversal-8bYndVrZ · Vendor Advisory
• https://twitter.com/OrizonCyber/status/2044468330929467637 · Twitter Post
• https://twitter.com/CCBalert/status/2045063757458456971 · Twitter Post
• https://twitter.com/vuldb/status/2044499641660805323 · Twitter Post
• https://twitter.com/CVEnew/status/2044737964358483982 · Twitter Post
• https://twitter.com/HunterMapping/status/2044690595726180538 · Twitter Post
• https://twitter.com/VivekIntel/status/2044760053258035232 · Twitter Post
• https://reddit.com/r/u_Expert_Sort7434/comments/1sol8ia/cisco_ise_cve202620147_cvss_99_command_injection · Reddit Post