High 8.4Published Jan 30, 2026

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

Updated under an hour ago (Oct 26, 2026, 2:50 PM ET)

Does this affect you?

It affects Code::Blocks. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Code::Blocks

Exploited in the last 30 days

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.

CVSS: 8.4 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-120
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jul 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Code::Blocks Code::Blocks code_blocks:code_blocks (from the name)	17.12	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.