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CVE-2020-37040

HIGH
Classic Buffer Overflow (CWE-120)
2026-01-30 disclosure@vulncheck.com
8.4
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.4 HIGH
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:00 vuln.today
PoC Detected
Feb 03, 2026 - 16:44 vuln.today
Public exploit code
CVE Published
Jan 30, 2026 - 23:16 nvd
HIGH 8.4

DescriptionCVE.org

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.

AnalysisAI

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. [CVSS 8.4 HIGH]

Technical ContextAI

Classified as CWE-120 (Classic Buffer Overflow). 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 ProductsAI

Code Blocks 17.12 contains a local buffer overflow vulnerability that allows attackers to execute arbitrary code by crafting a malicious file name wit

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible.

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CVE-2020-37040 vulnerability details – vuln.today

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