CVE-2013-5456

Java vulnerability

CVSS

9.3

EPSS

6.0%

EPSS pct

93th

Exploited

No known

The com.ibm.rmi.io.SunSerializableFactory class in IBM Java SDK 7.0.0 before SR6 allows remote attackers to bypass a sandbox protection mechanism and execute arbitrary code via vectors related to deserialization inside the AccessController doPrivileged block.

Affected vendor

Ibm

Affected product

Java

CVSS vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Published

2013-11-24

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 6.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2013-5456

Confirm whether Ibm Java is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2013-5456.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2013-5456

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2013-5456 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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