CVE-2019-11833

MEDIUMNVD 5.55.5—

5.5

fs/ext4/extents.c in the Linux kernel through 5.1.2 does not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem.

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 7.1%
KEV: Not listed

Published

May 15, 2019

Last Modified

November 21, 2024

References (44)

Patch Availability(11)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	linux-image-virtual-hwe-16.04-edge (4.15.0.55.57) @ bionic	2026-05-27	ubuntu
ubuntu	linux-image-virtual-lts-xenial (4.4.0.159.140) @ trusty	2026-05-27	ubuntu
ubuntu	linux-image-virtual-hwe-18.04 (5.0.0.23.80) @ bionic	2026-05-27	ubuntu
ubuntu	linux-image-5.0.0-1011-aws (5.0.0-1011.12) @ disco	2026-05-27	ubuntu
ubuntu	linux-image-virtual-lts-xenial (4.4.0.157.165) @ xenial	2026-05-27	ubuntu
ubuntu	linux-image-aws-hwe (4.15.0.1047.47) @ xenial	2026-05-27	ubuntu
ubuntu	linux-image-virtual-hwe-16.04 (4.15.0.55.76) @ xenial	2026-05-27	ubuntu
redhat	kernel-rt-0:4.18.0-147.rt24.93.el8	2019-11-05	redhat
redhat	kernel-0:4.18.0-147.el8	2019-11-05	redhat
redhat	kernel-rt-0:3.10.0-1062.rt56.1022.el7	2019-08-07	redhat
redhat	kernel-0:3.10.0-1062.el7	2019-08-06	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-908Use of Uninitialized Resource

All Vendor Advisories

(11)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 19:39 UTCEG score recompute
2026-05-27 19:39 UTCVendor advisory
2026-05-27 19:39 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 02:09 UTCOSV refresh

Frequently asked(5)

What is CVE-2019-11833?

CVE-2019-11833 is a medium vulnerability published on May 15, 2019. fs/ext4/extents.c in the Linux kernel through 5.1.2 does not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem.

When was CVE-2019-11833 disclosed?

CVE-2019-11833 was first published in the National Vulnerability Database on May 15, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-11833 actively exploited?

CVE-2019-11833 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-11833?

CVE-2019-11833 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2019-11833?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-11833, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-11833

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CVE-2019-11833

Published

Last Modified

References (44)

Patch Availability(11)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2019-11833?

Same vendor

Same CWE

CVE-2019-11833

📅 Published

🔄 Last Modified

🔗 References (44)

Patch Availability(11)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2019-11833?

🔗 Related CVEs(same vendor + same CWE)

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Published

Last Modified

References (44)

Frequently asked(5)

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