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MEDIUM

CVE-2019-15920

CVSS v3

4.3

MEDIUM

EPSS Score

1.8 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2019-15920 Red Hat Product Security120 products fixed · 16 known affected

    kernel: use-after-free information leak in SMB2_read

    kernel-rt as a component of Red Hat Enterprise Linux 8 · kernel-rt-core as a component of Red Hat Enterprise Linux 8 · kernel-rt-debug as a component of Red Hat Enterprise Linux 8

  • RHSA-2019:3517 Red Hat Product Security120 products fixed

    Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Full record on NVD

Description

An issue was discovered in the Linux kernel before 5.0.10. SMB2_read in fs/cifs/smb2pdu.c has a use-after-free. NOTE: this was not fixed correctly in 5.0.10; see the 5.0.11 ChangeLog, which documents a memory leak.

Technical details

Published
2019-09-04

Frequently asked questions

What is CVE-2019-15920?

An issue was discovered in the Linux kernel before 5.0.10. SMB2_read in fs/cifs/smb2pdu.c has a use-after-free. NOTE: this was not fixed correctly in 5.0.10; see the 5.0.11 ChangeLog, which documents a memory leak.

Is CVE-2019-15920 actively exploited?

Active exploitation of CVE-2019-15920 has not been confirmed. Its EPSS score was 1.8% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-15920?

CVE-2019-15920 has a CVSS v3 base score of 4.3 (MEDIUM severity).

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