CVE-2020-37040

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.

Score

CVSS 4.0 8.4 High

Status

Deferred - disclosure@vulncheck.com

Published

2026-01-30

Last modified

2026-07-28

Weaknesses

CWE-120

Affected products

• Code\ (Codeblocks)

References

• http://www.codeblocks.org/
• https://sourceforge.net/projects/codeblocks
• https://www.exploit-db.com/exploits/48594
• https://www.vulncheck.com/advisories/code-blocks-file-name-local-buffer-overflow