CVE-2026-20242

CVE-2026-20242 affects the External Database Access feature of Cisco Secure Firewall Management Center (FMC) Software . The root cause is insecure deserialization of a user-supplied Java byte stream. An unauthenticated, remote attacker who controls a host in the configured external database acces...

CVE-2026-20211 Cisco Identity Services Engine Remote Code Execution Vulnerability

A vulnerability in Cisco ISE could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. To exploit this vulnerability, the attacker must have valid high-privileged administrative credentials. This vulnerability is due to...

CVE-2026-20211

Cisco Identity Services Engine (ISE) is affected by a remote code execution vulnerability caused by insecure deserialization of Java objects . An authenticated attacker with high-privileged administrative credentials can send a crafted serialized Java object to gain user-level access to the under...

CVE-2026-20307 Cisco Identity Services Engine Remote Code Execution Vulnerability

A vulnerability in the web-based management interface of Cisco ISE could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. To exploit this vulnerability, the attacker must have at least low-privileged administrative...

CVE-2026-20307

CVE-2026-20307 affects the web-based management interface of Cisco ISE and stems from insecure deserialization of a user-supplied Java byte stream . An authenticated remote attacker with at least low-privileged administrative credentials can send a crafted serialized Java object to achieve arbitr...

Cisco Secure Firewall Management Center Software Java Deserialization Remote Code Execution Vulnerability

A vulnerability in the External Database Access feature of Cisco Secure Firewall Management Center FMC Software could allow an unauthenticated, remote attacker to execute arbitrary commands as root on an affected device. This vulnerability is due to insecure deserialization of a user-supplied Jav...

java-deserialization-notes

Notes on Replicating Java Deserialization Vulnerabilities S...

CVE-2023-54398

Yonyou U8 Cloud contains an unauthenticated Java deserialization vulnerability in the nc.impl.pub.filesystem.FileManageServlet component that allows remote unauthenticated attackers to execute arbitrary OS commands by sending a serialized payload via POST request. Attackers can exploit the doActi...

EUVD-2023-60691

Yonyou U8 Cloud contains an unauthenticated Java deserialization vulnerability in the nc.impl.pub.filesystem.FileManageServlet component that allows remote unauthenticated attackers to execute arbitrary OS commands by sending a serialized payload via POST request. Attackers can exploit the doActi...

CVE-2023-54398 Yonyou U8 Cloud Java Deserialization RCE via FileManageServlet

Yonyou U8 Cloud contains an unauthenticated Java deserialization vulnerability in the nc.impl.pub.filesystem.FileManageServlet component that allows remote unauthenticated attackers to execute arbitrary OS commands by sending a serialized payload via POST request. Attackers can exploit the doActi...

CVE-2023-54398

CVE-2023-54398 affects Yonyou U8 Cloud , a Chinese ERP suite, where the nc.impl.pub.filesystem.FileManageServlet component's doAction method passes raw HTTP POST body data directly to ObjectInputStream.readObject() without filtering, enabling unauthenticated Java deserialization that leads to arb...

CVE-2026-46495 OpenDJ Pre-Auth RCE via Java Deserialization in JMX RMI

OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.1, the JMX RMI connector in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiConnector.java processes attacker-controlled credential objects before authentication without a restrictive...

CVE-2026-46495 OpenDJ Pre-Auth RCE via Java Deserialization in JMX RMI

OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.1, the JMX RMI connector in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiConnector.java processes attacker-controlled credential objects before authentication without a restrictive...

CVE-2026-46495 OpenDJ Pre-Auth RCE via Java Deserialization in JMX RMI

OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.1, the JMX RMI connector in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiConnector.java processes attacker-controlled credential objects before authentication without a restrictive...

CVE-2026-45051 OpenAM Pre-auth RCE via Java Deserialization in WebAuthn Authenticator Storage

Open Access Management OpenAM is an access management solution. Prior to 16.1.1, WebAuthnAuthentication loads a serialized AuthenticatorImpl object graph from the configured userAttribute through loadAuthenticators without an ObjectInputFilter. Exploitation requires the WebAuthn flow to be...

CVE-2026-45051 OpenAM Pre-auth RCE via Java Deserialization in WebAuthn Authenticator Storage

Open Access Management OpenAM is an access management solution. Prior to 16.1.1, WebAuthnAuthentication loads a serialized AuthenticatorImpl object graph from the configured userAttribute through loadAuthenticators without an ObjectInputFilter. Exploitation requires the WebAuthn flow to be...

CVE-2026-45051 OpenAM Pre-auth RCE via Java Deserialization in WebAuthn Authenticator Storage

Open Access Management OpenAM is an access management solution. Prior to 16.1.1, WebAuthnAuthentication loads a serialized AuthenticatorImpl object graph from the configured userAttribute through loadAuthenticators without an ObjectInputFilter. Exploitation requires the WebAuthn flow to be...

CVE-2026-45794 OpenAM Unsafe Java Deserialization via SNS

Open Access Management OpenAM is an access management solution. Prior to 16.1.1, the anonymous Push Notification SNS callback handled by SnsMessageResource falls back to a CTS predicate blob after a messageId expires from the in-memory dispatcher, treats top-level blob keys as Java class names fo...

VulnCheck KEV: CVE-2023-54398

Yonyou U8 Cloud contains an unauthenticated Java deserialization vulnerability in the nc.impl.pub.filesystem.FileManageServlet component that allows remote unauthenticated attackers to execute arbitrary OS commands by sending a serialized payload via POST request. Attackers can exploit the doActi...

CVE-2023-54398: Deserialization of Untrusted Data

Yonyou U8 Cloud contains an unauthenticated Java deserialization vulnerability in the nc.impl.pub.filesystem.FileManageServlet component that allows remote unauthenticated attackers to execute arbitrary OS commands by sending a serialized payload via POST request. Attackers can exploit the doActi...