What is CVE-2017-18379?

CVE-2017-18379 is a critical-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2019-07-27.

How severe is CVE-2017-18379?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Linux Kernel

CVE-2017-18379

In the Linux kernel before 4.14, an out of boundary access happened in drivers/nvme/target/fc.c.

Vulnerability class: Buffer Overflow

Published 2019-07-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.028 (85.7th percentile), scored 2026-10-06.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000

Affected products

Linux Kernel

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

github.com/torvalds/linux/commit/0c319d3a144d4b8f1ea2047fd614d2149b68f889 (Patch, Vendor Advisory)
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
support.f5.com/csp/article/K74012105 (Third Party Advisory)
support.f5.com/csp/article/K74012105

Frequently asked questions

What is CVE-2017-18379?: CVE-2017-18379 is a critical-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2019-07-27.
How severe is CVE-2017-18379?: Critical severity. CVSS v3 base score is 9.8 out of 10.