What is CVE-2017-1000374?

CVE-2017-1000374 is a critical-severity vulnerability in NetBSD. CVSS score: 9.8/10. Published 2017-06-19.

How severe is CVE-2017-1000374?

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

Is CVE-2017-1000374 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in NetBSD

CVE-2017-1000374

A flaw exists in NetBSD's implementation of the stack guard page that allows attackers to bypass it resulting in arbitrary code execution using certain setuid binaries. This affects NetBSD 7.1 and possibly earlier versions.

Published 2017-06-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.034 (88.5th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000

Affected products

NetBSD

Public proof-of-concept exploits

References

www.qualys.com/2017/06/19/stack-clash/stack-clash.txt (Mailing List, Third Party Advisory)
www.securityfocus.com/bid/99176 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2017-1000374?: CVE-2017-1000374 is a critical-severity vulnerability in NetBSD. CVSS score: 9.8/10. Published 2017-06-19.
How severe is CVE-2017-1000374?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2017-1000374 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.