How severe is CVE-2018-11768?

CVE-2018-11768 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2018-11768 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11768?

CVE-2018-11768 primarily affects Apache Hadoop. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-11768?

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-2018-11768 published?

CVE-2018-11768 was published on 2019-10-04 and last updated on 2026-06-17.

CVE-2018-11768

CVE-2018-11768 is a high-severity vulnerability in Apache Hadoop with a CVSS 3.x 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-119.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Apache Hadoop
Published: 2019-10-04
Last modified: 2026-06-17

Description

In Apache Hadoop 3.1.0 to 3.1.1, 3.0.0-alpha1 to 3.0.3, 2.9.0 to 2.9.1, and 2.0.0-alpha to 2.8.4, the user/group information can be corrupted across storing in fsimage and reading back from fsimage.

Frequently asked questions

What is CVE-2018-11768?: In Apache Hadoop 3.1.0 to 3.1.1, 3.0.0-alpha1 to 3.0.3, 2.9.0 to 2.9.1, and 2.0.0-alpha to 2.8.4, the user/group information can be corrupted across storing in fsimage and reading back from fsimage.
How severe is CVE-2018-11768?: CVE-2018-11768 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2018-11768 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11768?: CVE-2018-11768 primarily affects Apache Hadoop. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-11768?: 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-2018-11768 published?: CVE-2018-11768 was published on 2019-10-04 and last updated on 2026-06-17.

References

Affected products (24)

cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.0:-:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.0:alpha:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.1:-:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.1:alpha:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.2:-:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.2:alpha:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.3:-:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.3:alpha:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.4:-:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.4:alpha:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.5:-:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.5:alpha:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.6:-:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.0.6:alpha:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.1.0:-:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.1.0:beta:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:2.1.1:beta:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:3.0.0:-:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:3.0.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:3.0.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:3.0.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:3.0.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:apache:hadoop:3.0.0:beta1:*:*:*:*:*:*

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