The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized     objects and `javax.naming.Reference` instances. Several c3p0 `ConnectionPoolDataSource` implementations     have a property called `userOverridesAsString` which conceptually represents a     `Map<String,Map<String,String>>`. Prior to v0.12.0, that property was maintained as a hex-encoded     serialized object. Any attacker able to reset this property, on an existing `ConnectionPoolDataSource` or     via maliciously crafted serialized objects or `javax.naming.Reference` instances could be tailored execute     unexpected code on the application's `CLASSPATH`. The danger of this vulnerability was strongly magnified     by vulnerabilities in c3p0's main dependency, mchange-commons-java. This library includes code that     mirrors early implementations of JNDI functionality, including ungated support for remote     `factoryClassLocation` values. Attackers could set c3p0's `userOverridesAsString` hex-encoded serialized     objects that include objects indirectly serialized via JNDI references. Deserialization of those objects     and dereferencing of the embedded `javax.naming.Reference` objects could provoke download and execution of     malicious code from a remote `factoryClassLocation`. Although hazard presented by c3p0's vulnerabilites     are exarcerbated by vulnerabilities in mchange-commons-java, use of Java-serialized-object hex as the     format for a writable Java-Bean property, of objects that may be exposed across JNDI interfaces,     represents a serious independent fragility. The `userOverridesAsString` property of c3p0     `ConnectionPoolDataSource` classes has been reimplemented to use a safe CSV-based format, rather than rely     upon potentially dangerous Java object deserialization. c3p0-0.12.0+ and above depend upon mchange-     commons-java 0.4.0+, which gates support for remote `factoryClassLocation` values by configuration     parameters that default to restrictive values. c3p0 additionally enforces the new mchange-commons-java     `com.mchange.v2.naming.nameGuardClassName` to prevent injection of unexpected, potentially remote JNDI     names. There is no supported workaround for versions of c3p0 prior to 0.12.0. (CVE-2026-27830)

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Linux Distros Unpatched Vulnerability : CVE-2026-27830

high Nessus Plugin ID 300173

Version 1.3

Version 1.2

Version 1.1

Version 1.3 Apr 29, 2026, 12:50 PM CVSS metrics ("CVSSv3 score" set to 9.0) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H") Detection (updated detection logic) Plugin metadata Plugin Feed: 202604291250
Version 1.2 Mar 4, 2026, 3:45 PM CVSS metrics ("Cvssv4 score" set to 8.9) CVSS metrics ("Cvssv4 threat vector" set to "CVSS:4.0/E:U") CVSS metrics ("Cvssv4 vector" set to "CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H") Plugin Feed: 202603041545
Version 1.1 Mar 2, 2026, 12:44 PM New Plugin Feed: 202603021244