How severe is CVE-2012-3376?

CVE-2012-3376 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2012-3376 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3376?

CVE-2012-3376 affects Apache Hadoop. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-3376?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2012-3376 published?

CVE-2012-3376 was published on 2012-07-12 and last updated on 2026-06-16.

CVE-2012-3376

CVE-2012-3376 is a high-severity vulnerability in Apache Hadoop with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Apache Hadoop
Published: 2012-07-12
Last modified: 2026-06-16

Description

DataNodes in Apache Hadoop 2.0.0 alpha does not check the BlockTokens of clients when Kerberos is enabled and the DataNode has checked out the same BlockPool twice from a NodeName, which might allow remote clients to read arbitrary blocks, write to blocks to which they only have read access, and have other unspecified impacts.

Frequently asked questions

What is CVE-2012-3376?: DataNodes in Apache Hadoop 2.0.0 alpha does not check the BlockTokens of clients when Kerberos is enabled and the DataNode has checked out the same BlockPool twice from a NodeName, which might allow remote clients to read arbitrary blocks, write to blocks to which they only have read access, and have other unspecified impacts.
How severe is CVE-2012-3376?: CVE-2012-3376 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2012-3376 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3376?: CVE-2012-3376 affects Apache Hadoop. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-3376?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2012-3376 published?: CVE-2012-3376 was published on 2012-07-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:apache:hadoop:2.0.0:alpha:*:*:*:*:*:*

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