CVE-2019-12630: Cisco Security Manager Java Deserialization Vulnerability

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 65.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-10-02 · updated 2026-06-17
Weakness: CWE-20

Description

A vulnerability in the Java deserialization function used by Cisco Security Manager could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. The vulnerability is due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit this vulnerability by sending a malicious serialized Java object to a specific listener on an affected system. A successful exploit could allow the attacker to execute arbitrary commands on the device with the privileges of casuser.

Affected products

Cisco Security Manager: before 4.18 — fixed in 4.18

How to fix

Upgrade to a fixed version: Cisco Security Manager 4.18. Check the vendor advisory for mitigations.

References

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