Amazon Uncovers Attacks Exploited Cisco ISE and Citrix NetScaler as Zero-Day Flaws

Amazon's threat intelligence team on Wednesday disclosed that it observed an advanced threat actor exploiting two then-zero-day security flaws in Cisco Identity Service Engine ISE and Citrix NetScaler ADC products as part of attacks designed to deliver custom malware. "This discovery highlights t...

CVE-2025-20343

A vulnerability in the RADIUS setting Reject RADIUS requests from clients with repeated failures on Cisco Identity Services Engine ISE could allow an unauthenticated, remote attacker to cause Cisco ISE to restart unexpectedly. This vulnerability is due to a logic error when processing a RADIUS...

CVE-2025-20303

Multiple vulnerabilities in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a reflected XSS attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the...

CVE-2025-20304

Multiple vulnerabilities in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a reflected XSS attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the...

CVE-2025-20305

A vulnerability in the web-based management interface of Cisco ISE could allow an authenticated, remote attacker to obtain sensitive information from an affected device. This vulnerability exists because certain files lack proper data protection mechanisms. An attacker with read-only Administrato...

CVE-2025-20305

A vulnerability in the web-based management interface of Cisco ISE could allow an authenticated, remote attacker to obtain sensitive information from an affected device. This vulnerability exists because certain files lack proper data protection mechanisms. An attacker with read-only Administrato...

CVE-2025-20304

Multiple vulnerabilities in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a reflected XSS attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the...

CVE-2025-20303

Multiple vulnerabilities in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a reflected XSS attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the...

CVE-2025-20289

Multiple vulnerabilities in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a reflected XSS attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the...

CVE-2025-20304

Multiple vulnerabilities in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a reflected XSS attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the...

CVE-2025-20305

Cisco ISE (web-based management interface) contains an information-disclosure vulnerability where certain files lack proper data protection, enabling an authenticated, read-only administrator to view passwords normally hidden to that role. Impact is limited to confidentiality (viewing sensitive c...

CVE-2025-20289

Multiple vulnerabilities in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a reflected XSS attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the...

CVE-2025-20289

Cisco ISE and Cisco ISE-PIC's web-based management interface authenticate to users and are affected by multiple vulnerabilities allowing reflected XSS due to insufficient input validation. An authenticated, low-privilege attacker can exploit specific pages to run arbitrary script code in the user...

CVE-2025-20303

Cisco ISE and Cisco ISE-PIC web-based management interfaces have multiple vulnerabilities that allow an authenticated, remote attacker with at least a low-privileged account to perform a reflected XSS by injecting malicious input into specific pages. The issues stem from insufficient validation o...

Cisco Identity Services Engine Reflected Cross-Site Scripting and Information Disclosure Vulnerabilities

Multiple vulnerabilities in Cisco Identity Services Engine ISE and Cisco ISE Passive Identity Connector ISE-PIC could allow an authenticated, remote attacker to either disclose sensitive information or conduct a reflected cross-site scripting XSS attack. For more information about these...

CVE-2025-20289: Improper Neutralization of Input During Web Page Generation

Multiple vulnerabilities in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a reflected XSS attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the...

CVE-2025-20343: Incorrect Comparison

A vulnerability in the RADIUS setting Reject RADIUS requests from clients with repeated failures on Cisco Identity Services Engine ISE could allow an unauthenticated, remote attacker to cause Cisco ISE to restart unexpectedly. This vulnerability is due to a logic error when processing a RADIUS...

CVE-2025-20304: Improper Neutralization of Input During Web Page Generation

Multiple vulnerabilities in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a reflected XSS attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the...

CVE-2025-20303: Improper Neutralization of Input During Web Page Generation

Multiple vulnerabilities in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a reflected XSS attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the...

CVE-2025-20305: Insufficient Granularity of Access Control

A vulnerability in the web-based management interface of Cisco ISE could allow an authenticated, remote attacker to obtain sensitive information from an affected device. This vulnerability exists because certain files lack proper data protection mechanisms. An attacker with read-only Administrato...