SecOps SignalSecurity Intelligence Workspace
Collection Degraded30 / 46 Sources HealthyPublic Intel Only
Vulnerabilities/CVE-2019-5188Public Intelligence Dossier
Source: e2fsprogs project · Limited verification•Last verified: •Collection Degraded
CVE-2019-5188Unknown / EvaluatingHIGH (raw)CVSS 7.5CWE-787

A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4

Published: 08 Jan 2020•Last updated: 14 Oct 2026, 12:46 PM IST•Source identifier: talos-cna@cisco.com
Dossier completeness: source-provided sections 2 / 3 · rule guidance not available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Unknown
KEV status was not determined.
CVSS score
7.5HIGH (raw)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Metric sourcetalos-cna@cisco.com
EPSS probability
1.1%0.011
Percentile65th
Weakness type
CWE-787
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.

SOC priority

High

Actively exploited

Unknown

Publicly disclosed

Unknown

Risk basis: SOC ecosystem technology relevance; HIGH severity; No confirmed exploitation signal in current enrichment

Affected Products & Remediation

7 source-backed products
Affected products and versions (source)
  • e2fsprogs project e2fsprogs · >= 1.43.3 <= 1.45.4 · NVD CPE · Source
  • fedoraproject fedora · 30; 31 · NVD CPE · Source
  • debian debian linux · 8.0; 9.0 · NVD CPE · Source
  • canonical ubuntu linux · 12.04; 14.04; 16.04; 18.04; 19.04; 19.10 · NVD CPE · Source
  • opensuse leap · 15.1 · NVD CPE · Source
  • netapp hci compute node firmware · version range not provided by source · NVD CPE · Source
  • netapp solidfire\, enterprise sds \& hci storage node · version range not provided by source · NVD CPE · Source
NVD applicability prerequisites: cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*. These are conditions, not proof that an environment is exposed or unaffected.
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

Not provided by source

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Unknown
Exploited (source statement)
Unknown
Publicly disclosed (source)
Unknown

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

No rule-based guidance for this vulnerability class

CISA KEV Record

CISA KEV status was not determined for this record.

Change History & Source Data

— No recorded material change

CNA / source
talos-cna@cisco.com
Record status · verification
UPDATED · NVD API
CPE
cpe:2.3:a:e2fsprogs_project:e2fsprogs:*:*:*:*:*:*:*:*, cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*, cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*, cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*, cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*, cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*, cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*, cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*, cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*, cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*

Evidence & Provenance

3 public sources
nvd.nist.govSource recordlists.debian.orgSource recordlists.debian.orgSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2019-5188
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2019-5188
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2019-5188"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
Open KQL Library

Correlated briefings

— No published briefing references this CVE

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.