CVE-2013-2456

CVE-2013-2456 is a medium-severity vulnerability in Oracle Jre with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and earlier, 6 Update 45 and earlier, and 5.0 Update 45 and earlier, and OpenJDK 7, allows remote attackers to affect confidentiality via unknown vectors related to Serialization. NOTE: the previous information is from the June 2013 CPU. Oracle has not commented on claims from another vendor that this issue is related to improper access checks for subclasses in the ObjectOutputStream class.

Frequently asked questions

What is CVE-2013-2456?
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and earlier, 6 Update 45 and earlier, and 5.0 Update 45 and earlier, and OpenJDK 7, allows remote attackers to affect confidentiality via unknown vectors related to Serialization. NOTE: the previous information is from the June 2013 CPU. Oracle has not commented on claims from another vendor that this issue is related to improper access checks for subclasses in the ObjectOutputStream class.
How severe is CVE-2013-2456?
CVE-2013-2456 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2013-2456 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-2456?
CVE-2013-2456 primarily affects Oracle Jre. In total, 186 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-2456?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-2456 published?
CVE-2013-2456 was published on 2013-06-18 and last updated on 2026-06-16.

References

Affected products (186)

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