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CVE-2026-20193

24
FAUCET Score

A vulnerability in the RADIUS Policy API endpoints of Cisco ISE could allow an authenticated, remote attacker with read-only Administrator privileges to gain unauthorized access to sensitive information on an affected device. This vulnerability is due to improper role-based access control (RBAC) permissions on the RADIUS Policy API endpoints. An attacker could exploit this vulnerability by bypassing the web-based management interface and directly calling an affected endpoint. A successful exploit could allow the attacker to gain unauthorized read access to sensitive RADIUS Policy details that are restricted for their role.

First published: May 6, 2026Last modified: May 6, 2026

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.2.0CPE matchmatch criteria
cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:*
3.3.0CPE matchmatch criteria
cpe:2.3:a:cisco:identity_services_engine:3.3.0:-:*:*:*:*:*:*
3.3.0CPE matchmatch criteria
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch1:*:*:*:*:*:*
3.3.0CPE matchmatch criteria
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch10:*:*:*:*:*:*
3.3.0CPE matchmatch criteria
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
12.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 13th percentile among its peer group of 21,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-unauth-bypass-uxjRXGpb
Vendor Advisory