What is CVE-2019-18786?

CVE-2019-18786 is a medium-severity vulnerability in Linux Kernel, classified under Use of Uninitialized Resource. CVSS score: 5.5/10. Published 2019-11-06.

How severe is CVE-2019-18786?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux Kernel

CVE-2019-18786

In the Linux kernel through 5.3.8, f->fmt.sdr.reserved is uninitialized in rcar_drif_g_fmt_sdr_cap in drivers/media/platform/rcar_drif.c, which could cause a memory disclosure problem.

Published 2019-11-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (28.1th percentile), scored 2026-10-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Linux Kernel
Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

References

patchwork.linuxtv.org/patch/59542/ (Patch, Third Party Advisory, Issue Tracking)
usn.ubuntu.com/4285-1/ (vendor-advisory, Third Party Advisory)
usn.ubuntu.com/4287-1/ (vendor-advisory, Third Party Advisory)
usn.ubuntu.com/4287-2/ (vendor-advisory, Third Party Advisory)
usn.ubuntu.com/4284-1/ (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2019-18786?: CVE-2019-18786 is a medium-severity vulnerability in Linux Kernel, classified under Use of Uninitialized Resource. CVSS score: 5.5/10. Published 2019-11-06.
How severe is CVE-2019-18786?: Medium severity. CVSS v3 base score is 5.5 out of 10.