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I. Basic Information for CVE-2025-20124
Vulnerability Information
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Vulnerability Title
Cisco Identity Services Engine Java Deserialization Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in an API of Cisco ISE could allow an authenticated, remote attacker to execute arbitrary commands as the root user on an affected device. This vulnerability is due to insecure deserialization of user-supplied Java byte streams by the affected software. An attacker could exploit this vulnerability by sending a crafted serialized Java object to an affected API. A successful exploit could allow the attacker to execute arbitrary commands on the device and elevate privileges. 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco ISE 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco ISE是美国思科（Cisco）公司的一个 NAC 解决方案。用于管理零信任架构中的端点、用户和设备对网络资源的访问。 Cisco ISE存在代码问题漏洞，该漏洞源于存在API反序列化问题，导致攻击者可以root权限执行任意命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
CiscoCisco Identity Services Engine Software 3.0.0 -
CiscoCisco ISE Passive Identity Connector 3.0.0 -
II. Public POCs for CVE-2025-20124
#POC DescriptionSource LinkShenlong Link
1A vulnerability in an API of Cisco ISE could allow an authenticated, remote attacker to execute arbitrary commands as the root user on an affected device. This vulnerability is due to insecure deserialization of user-supplied Java byte streams by the affected software. https://github.com/Yuri08loveElaina/CVE-2025-20124_and_CVE-2025-20125POC Details
2Esse script explora a vulnerabilidade CVE-2025-20124 — uma falha de Java Deserialization no Cisco ISE (Identity Services Engine) que permite Remote Code Execution (RCE).https://github.com/137f/Cisco-ISE-3.0---Remote-Code-Execution-RCE-POC Details
3Esse script explora a vulnerabilidade CVE-2025-20124 — uma falha de Java Deserialization no Cisco ISE (Identity Services Engine) que permite Remote Code Execution (RCE).https://github.com/ftz7/Cisco-ISE-3.0---Remote-Code-Execution-RCE-POC Details
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III. Intelligence Information for CVE-2025-20124
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IV. Related Vulnerabilities
Same product: Cisco Identity Services Engine Software
Same vendor: Cisco
Same weakness: CWE-502
V. Comments for CVE-2025-20124

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