Is CVE-2019-20431 in the CISA KEV catalog?

No. CVE-2019-20431 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-20431?

CVE-2019-20431 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-20431?

CVE-2019-20431 has an EPSS score of 1.92% (77th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-20431?

Upgrade lustre to 2.12.3 or later.

CVE & CISA-KEV Catalog

CVE-2019-20431

HIGHEPSS 77th pctl

7.5

CVSS v3

NVD

Description

In the Lustre file system before 2.12.3, the ptlrpc module has an osd_map_remote_to_local out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. osd_bufs_get in the osd_ldiskfs module does not validate a certain length value.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

lustreNVD

Affected:< 2.12.3Fixed in:2.12.3CVE-2019-20431derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.92%probability of exploitation in 30 days

77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

Exploit1

jira.whamcloud.com

Vendor Advisory2

Third-Party Advisory1

review.whamcloud.com

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.