What is CVE-2019-16277?

CVE-2019-16277 is a high-severity vulnerability in Picoc Project, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2019-09-13.

How severe is CVE-2019-16277?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Picoc Project

CVE-2019-16277

PicoC 2.1 has a heap-based buffer overflow in StringStrcpy in cstdlib/string.c when called from ExpressionParseFunctionCall in expression.c.

Vulnerability class: Buffer Overflow

Published 2019-09-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (57.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Picoc Project — versions 2.1

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

gitlab.com/zsaleeba/picoc/issues/44 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2019-16277?: CVE-2019-16277 is a high-severity vulnerability in Picoc Project, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2019-09-13.
How severe is CVE-2019-16277?: High severity. CVSS v3 base score is 7.8 out of 10.