Cisco Identity Services Engine Software API improper authorization

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.3 | $0-$5k | 0.00 |
Summary
A vulnerability described as critical has been identified in Cisco Identity Services Engine Software and ISE Passive Identity Connector. The affected element is an unknown function of the component API. Such manipulation leads to improper authorization. This vulnerability is referenced as CVE-2025-20125. It is possible to launch the attack remotely. Furthermore, an exploit is available. Upgrading the affected component is recommended.
Details
A vulnerability was found in Cisco Identity Services Engine Software and ISE Passive Identity Connector (unknown version). It has been rated as critical. Affected by this issue is an unknown code block of the component API. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:
A vulnerability in an API of Cisco ISE could allow an authenticated, remote attacker with valid read-only credentials to obtain sensitive information, change node configurations, and restart the node. This vulnerability is due to a lack of authorization in a specific API and improper validation of user-supplied data. An attacker could exploit this vulnerability by sending a crafted HTTP request to a specific API on the device. A successful exploit could allow the attacker to attacker to obtain information, modify system configuration, and reload the device. Note: To successfully exploit this vulnerability, the attacker must have valid read-only administrative credentials. In a single-node deployment, new devices will not be able to authenticate during the reload time.
The advisory is shared for download at sec.cloudapps.cisco.com. This vulnerability is handled as CVE-2025-20125 since 10/10/2024. The exploitation is known to be easy. The attack may be launched remotely. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1548.002.
The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 216074 (Cisco Identity Services Engine Insecure Java Deserialization and Authorization Bypass Vulnerabilities (cisco-sa-ise-multivuls-FTW9AOXF)), which helps to determine the existence of the flaw in a target environment.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the databases at Exploit-DB (52397) and Tenable (216074). Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.3
VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.2
NVD Vector: 🔍
CNA Base Score: 9.1
CNA Vector (cisco): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Improper authorizationCWE: CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 216074
Nessus Name: Cisco Identity Services Engine Insecure Java Deserialization and Authorization Bypass Vulnerabilities (cisco-sa-ise-multivuls-FTW9AOXF)
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
10/10/2024 🔍02/05/2025 🔍
02/05/2025 🔍
08/13/2025 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-ise-multivuls-FTW9AOXF
Status: Confirmed
CVE: CVE-2025-20125 (🔍)
GCVE (CVE): GCVE-0-2025-20125
GCVE (VulDB): GCVE-100-294740
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/05/2025 18:03Updated: 08/13/2025 03:24
Changes: 02/05/2025 18:03 (64), 02/12/2025 07:01 (2), 03/28/2025 15:12 (12), 08/13/2025 03:24 (11)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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