CVE-2025-20281: Cisco Identity Services Engine Injection Vulnerability

Published Jun 25, 2025
·
Updated

A vulnerability in a specific API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to execute arbitrary code on the underlying operating system as root. The attacker does not require any valid credentials to exploit this vulnerability. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a crafted API request. A successful exploit could allow the attacker to obtain root privileges on an affected device.

Other sources

Cisco Identity Services Engine contains an injection vulnerability in a specific API of Cisco ISE and Cisco ISE-PIC due to insufficient validation of user-supplied input allowing an attacker to exploit this vulnerability by submitting a crafted API request. Successful exploitation could allow an attacker to perform remote code execution and obtaining root privileges on an affected device.

CISA

Affected Software

21 affected components
Cisco Identity Services Engine
Cisco ISE-PIC
Cisco Identity Services Engine
Cisco Identity Services Engine=3.3.0
Cisco Identity Services Engine=3.3.0-patch1
Cisco Identity Services Engine=3.3.0-patch2
Cisco Identity Services Engine=3.3.0-patch3
Cisco Identity Services Engine=3.3.0-patch4
Cisco Identity Services Engine=3.3.0-patch5
Cisco Identity Services Engine=3.4.0
Cisco Identity Services Engine=3.4.0-patch1
Cisco Identity Services Engine Passive Identity Connector=3.3.0
Cisco Identity Services Engine Passive Identity Connector=3.3.0-patch1
Cisco Identity Services Engine Passive Identity Connector=3.3.0-patch2
Cisco Identity Services Engine Passive Identity Connector=3.3.0-patch3
Cisco Identity Services Engine Passive Identity Connector=3.3.0-patch4
Cisco Identity Services Engine Passive Identity Connector=3.3.0-patch5
Cisco Identity Services Engine Passive Identity Connector=3.4.0
Cisco Identity Services Engine Passive Identity Connector=3.4.0-patch1
Cisco Identity Services Engine=3.3.0-patch6
Cisco Identity Services Engine Passive Identity Connector=3.3.0-patch6

Event History

Jun 25, 2025
CVE Published
via MITRE·04:11 PM
Data Sourced
via MITRE·04:11 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·04:15 PM
DescriptionSeverityWeaknessAffected Software
Jun 26, 2025
News Published
via BleepingComputer·03:20 PM
News Published
via BleepingComputer·03:22 PM
News Published
via The Register·05:30 PM
News Published
via The Register·05:34 PM
Jul 17, 2025
News Published
via BleepingComputer·03:53 PM
News Published
via The Register·06:44 PM
Jul 22, 2025
News Published
via BleepingComputer·02:40 PM
Jul 24, 2025
News Published
via The Register·06:28 PM
Jul 28, 2025
Known Exploited
via CISA·12:00 AM
Data Sourced
via CISA·12:00 AM
RemedyDescriptionAffected Software
News Published
via BleepingComputer·05:29 PM
Aug 15, 2025
News Published
via The Register·05:37 PM
Jan 8, 2026
News Published
via The Register·06:43 PM
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Frequently Asked Questions

1

What is the severity of CVE-2025-20281?

CVE-2025-20281 is a critical severity vulnerability that allows unauthenticated remote code execution on affected Cisco products.

2

How do I fix CVE-2025-20281?

To fix CVE-2025-20281, upgrade the affected Cisco Identity Services Engine or Cisco ISE-PIC to the latest patched versions as recommended by Cisco.

3

Who is affected by CVE-2025-20281?

CVE-2025-20281 affects users of Cisco Identity Services Engine and Cisco ISE-PIC, specifically those running unpatched versions.

4

What type of vulnerability is CVE-2025-20281?

CVE-2025-20281 is classified as a remote code execution vulnerability due to its ability to allow attackers to execute arbitrary code.

5

Can CVE-2025-20281 be exploited without authentication?

Yes, CVE-2025-20281 can be exploited by attackers without any required credentials, posing a significant security risk.

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