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Fencer Intel
medium 4.1

CVE-2025-20285 json

Cisco Identity Services Engine IP Filter Access Restriction for Admin Access Configuration Bypass Vulnerability

published last yr. modified 4mo ago also EUVD-2025-21709

cvss
4.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits
0
none known

Summary

A vulnerability in the IP Access Restriction feature of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to bypass configured IP access restrictions and log in to the device from a disallowed IP address.

This vulnerability is due to improper enforcement of access controls that are configured using the IP Access Restriction feature. An attacker could exploit this vulnerability by logging in to the API from an unauthorized source IP address. A successful exploit could allow the attacker to gain access to the targeted device from an IP address that should have been restricted. To exploit this vulnerability, the attacker must have valid administrative credentials.

Patch / fix

  • cisco identity_services_engine 3.3.0
  • cisco identity_services_engine_passive_identity_connector 3.3.0

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 4.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N
NVD 3.1 4.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N

Affected products

  • Cisco Cisco Identity Services Engine Software

Classification

Weakness
  • CWE-302 Authentication Bypass by Assumed-Immutable Data

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.