What is CVE-2017-8387?

CVE-2017-8387 is a medium-severity vulnerability in Stdutility Stdu Viewer, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2017-07-05.

How severe is CVE-2017-8387?

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

Buffer overflow in Stdutility Stdu Viewer

CVE-2017-8387

STDU Viewer version 1.6.375 might allow user-assisted attackers to execute code via a crafted file. One threat model is a victim who obtains an untrusted crafted file from a remote location and issues several user-defined commands including Ctrl-+ commands.

Vulnerability class: Buffer Overflow

Published 2017-07-05 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.018 (77.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Stdutility Stdu Viewer — versions 1.6.375

Weakness classification (CWE)

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

References

github.com/wlinzi/security_advisories/tree/master/CVE-2017-8387 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2017-8387?: CVE-2017-8387 is a medium-severity vulnerability in Stdutility Stdu Viewer, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2017-07-05.
How severe is CVE-2017-8387?: Medium severity. CVSS v3 base score is 5.5 out of 10.