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CVE-2019-20432

24
FAUCET Score

CVE-2019-20432 describes an out-of-bounds access vulnerability in the Lustre file system, specifically affecting versions prior to 2.12.3. This flaw, rated High severity (CVSS 7.5), stems from insufficient validation of client-sent packet fields, leading to a denial-of-service condition. While no active exploitation or public exploit code is known, and community discussion is minimal, the vulnerability allows unauthenticated attackers to remotely crash the system.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.12.3CPE matchmatch criteria
cpe:2.3:a:lustre:lustre:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.81%
Probability of exploitation in next 30 days
EPSS Percentile
76.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0181 is in the 59th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lustre.org
ProductVendor Advisory
jira.whamcloud.com / browse/LU-12604
ExploitIssue TrackingThird Party Advisory
review.whamcloud.com
Third Party Advisory
wiki.lustre.org / Lustre_2.12.3_Changelog
Release NotesVendor Advisory