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Fencer Vulns
critical 10.0

CVE-2025-20282 in the critical feed json

Cisco ISE API Unauthenticated Remote Code Execution Vulnerability

published 2025-06-25 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-19166

cvss
10.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
38.7%
EPSS 38.7% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known, plus a Nuclei check

Summary

A vulnerability in an internal API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device and then execute those files on the underlying operating system as root.

This vulnerability is due a lack of file validation checks that would prevent uploaded files from being placed in privileged directories on an affected system. An attacker could exploit this vulnerability by uploading a crafted file to the affected device. A successful exploit could allow the attacker to store malicious files on the affected system and then execute arbitrary code or obtain root privileges on the system.

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
16 mo ago

Exploit prediction

38.72% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template Cisco ISE < 3.4P2 - Unauthenticated Arbitrary File Upload nuclei detection template

CVSS scores

assigned by version score vector
CNA 3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

  • Cisco Cisco Identity Services Engine Software

Classification

Weakness
  • CWE-269 Improper Privilege Management

References

Sources

Fencer Vulns 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.