Code Blocks 17.12 contains a local buffer overflow vulnerability that allows attackers to execute arbitrary code by crafting a malicious file name with Unicode characters. Attackers can trigger the vulnerability by pasting a specially crafted payload into the file name field during project creation, potentially executing system commands like calc.exe.
History

Fri, 30 Jan 2026 22:30:00 +0000

Type Values Removed Values Added
Description Code Blocks 17.12 contains a local buffer overflow vulnerability that allows attackers to execute arbitrary code by crafting a malicious file name with Unicode characters. Attackers can trigger the vulnerability by pasting a specially crafted payload into the file name field during project creation, potentially executing system commands like calc.exe.
Title Code Blocks 17.12 - 'File Name' Local Buffer Overflow
Weaknesses CWE-120
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-01-30T22:07:14.851Z

Reserved: 2026-01-28T18:18:30.524Z

Link: CVE-2020-37040

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-01-30T23:16:09.587

Modified: 2026-01-30T23:16:09.587

Link: CVE-2020-37040

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.