CRITICAL

CVE-2019-20427

CVSS v3

9.8

CRITICAL

EPSS Score

5.1 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2019-20427 yet.

Full record on NVD

Description

In the Lustre file system before 2.12.3, the ptlrpc module has a buffer overflow and panic, and possibly remote code execution, due to the lack of validation for specific fields of packets sent by a client. Interaction between req_capsule_get_size and tgt_brw_write leads to a tgt_shortio2pages integer signedness error.

Technical details

Published: 2020-01-27

Frequently asked questions

What is CVE-2019-20427?

Is CVE-2019-20427 actively exploited?

Active exploitation of CVE-2019-20427 has not been confirmed. Its EPSS score was 5.1% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-20427?

CVE-2019-20427 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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