CVE-2022-44318

MediumPublished

PicoC Version 3.2.2 was discovered to contain a heap buffer overflow in the StringStrcat function in cstdlib/string.c when called from...

Published: Nov 8, 2022
Updated: May 1, 2025
Assigning CNA: mitre
Evidence observed: Aug 5, 2026

Primary CVSS

5.5/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 27.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

PicoC Version 3.2.2 was discovered to contain a heap buffer overflow in the StringStrcat function in cstdlib/string.c when called from ExpressionParseFunctionCall.

Sources

CVE-2022-44318PoC
Proof of concept for CVE-2022-44318
CVEs-for-picoc-3.2.2PoC
Reproduction files for CVE-2022-44312 through CVE-2022-44321

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