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CVE-2013-5456

25
FAUCET Score

CVE-2013-5456 describes a critical vulnerability in IBM Java SDK 7.0.0 before SR6, specifically within the com.ibm.rmi.io.SunSerializableFactory class. This flaw allows remote attackers to bypass sandbox protections and execute arbitrary code through deserialization within a privileged block. With a CVSS score of 9.3, this vulnerability is highly severe, indicating a network-based attack with medium complexity that can lead to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation (not in KEV or Hot List) and no public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, including a SecurityWeek article highlighting a bypass of an IBM Java patch.

Impacted Technologies

VendorProductVersion(s)CPE
7.0.0.0CPE matchmatch criteria
cpe:2.3:a:ibm:java:7.0.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.03%
Probability of exploitation in next 30 days
EPSS Percentile
92.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0603 is in the 66th percentile among its peer group of 8,920 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: java-1.7.0-ibm-1:1.7.0.6.0-1jpp.1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 6Fixed in: java-1.7.0-ibm-1:1.7.0.6.0-1jpp.1.el6_4
View patch

Vendor Advisories (1)

redhatCVE-2013-5456Critical

JDK: unspecified sandbox bypass (ORB)

Nov 5, 2013

References

lists.opensuse.org / opensuse-security-announce/2013-11/msg00013.html
rhn.redhat.com / errata/RHSA-2013-1507.html
secunia.com / advisories/56338
exchange.xforce.ibmcloud.com / vulnerabilities/88255
ibm.com / developerworks/java/jdk/alerts
Vendor Advisory
www-01.ibm.com / support/docview.wss
www-01.ibm.com / support/docview.wss
Vendor Advisory
www-01.ibm.com / support/docview.wss
Vendor Advisory
security-explorations.com / materials/SE-2012-01-IBM-3.pdf
security-explorations.com / materials/SE-2012-01-IBM-5.pdf