CVE-2020-37038

Unknown Unknown - Not Provided

Denial of Service in Code Blocks 20.03 via FSymbols Search

Publication date: 2026-01-30

Last updated on: 2026-01-30

Assigner: VulnCheck

Description

Code Blocks 20.03 contains a denial of service vulnerability that allows attackers to crash the application by manipulating input in the FSymbols search field. Attackers can paste a large payload of 5000 repeated characters into the search field to trigger an application crash.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-01-30

Last Modified

2026-01-30

Generated

2026-07-06

AI Q&A

2026-01-31

EPSS Evaluated

2026-07-05

NVD

CVE-2020-37038

EUVD

EUVD-2020-30940

Affected Vendors & Products

Vendor	Product	Version / Range
codeblocks	code_blocks	20.03

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-770	The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Attack-Flow Graph

Executive Summary

This vulnerability in Code Blocks 20.03 is a denial of service issue where an attacker can crash the application by entering a large payload of 5000 repeated characters into the FSymbols search field.

Impact Analysis

The impact of this vulnerability is that an attacker can cause the Code Blocks application to crash, leading to denial of service and potentially disrupting normal use of the software.

Detection Guidance

This vulnerability can be detected by testing the FSymbols search field in Code Blocks 20.03 with a large payload of 5000 repeated characters to see if the application crashes. There are no specific network detection commands provided.

Mitigation Strategies

Immediate mitigation steps include avoiding pasting or inputting large payloads (such as 5000 repeated characters) into the FSymbols search field in Code Blocks 20.03 to prevent application crashes.

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