CVE-2020-37040: Code Blocks 17.12 - 'File Name' Local Buffer Overflow

Severity: high (CVSS 8.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-30 · updated 2026-06-17
Weakness: CWE-120

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.

Affected products

Code::Blocks: 17.12

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

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