What is CVE-2016-6350?

CVE-2016-6350 is a medium-severity vulnerability in OpenBSD, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2017-03-07.

How severe is CVE-2016-6350?

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

NULL pointer dereference in OpenBSD

CVE-2016-6350

OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (NULL pointer dereference and panic) via a sysctl call with a path starting with 10,9.

Published 2017-03-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (34.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

OpenBSD — versions 5.8, 5.9

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/kern/vfs_subr.c.diff (Patch)
www.openwall.com/lists/oss-security/2016/07/26/6 (mailing-list, Exploit, Mailing List, Third Party Advisory)
www.openwall.com/lists/oss-security/2016/07/26/8 (mailing-list, Exploit, Mailing List, Third Party Advisory)
www.securityfocus.com/bid/92140 (vdb-entry)
cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/tmpfs/tmpfs_vfsops.c.diff (Patch)

Frequently asked questions

What is CVE-2016-6350?: CVE-2016-6350 is a medium-severity vulnerability in OpenBSD, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2017-03-07.
How severe is CVE-2016-6350?: Medium severity. CVSS v3 base score is 5.5 out of 10.