CVE-2026-20282

Cisco Identity Services Engine Authenticated Write Vulnerability

Severity
Medium 4.9
CVSS 3.1
Exploited
Not listed
EPSS
0.006
45.2th percentile
Discovered by
Third party
Vendor-published field
Published
Sep 16, 2026
Assigned by cisco

Description

A vulnerability in Cisco ISE could allow an authenticated, remote attacker to obtain write access on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain write access to the underlying operating system. To exploit this vulnerability, the attacker must have valid administrative credentials. Note: For CVE-2026-20282, Cisco has assigned a Security Impact Rating (SIR) of High rather than Medium as the score indicates. The reason is that it is easy to get to root from the achieved privilege level.

Weakness: CWE-641

Affected products

Vendor Product Category Matched by
Cisco Cisco Identity Services Engine (ISE) Identity / IAM / MFA cna-assigner
Vendor-reported products (1)
  • Cisco · Cisco Identity Services Engine Software

Something wrong here?