Denial of Service Vulnerability in Code Blocks by Code Blocks
CVE-2020-37038

4.6MEDIUM

Key Information:

Vendor

Code::blocks

Status
Code::blocks
Vendor
CVE Published:
30 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-37038?

Code Blocks 20.03 is susceptible to a denial of service attack that can be exploited by sending a specially crafted input to the FSymbols search field. By pasting an excessive payload of 5000 repeated characters, an attacker can induce an application crash, disrupting normal functionality and workflow.

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Affected Version(s)

Code::Blocks 20.03

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-37038 - Proof of Concept

References

https://www.exploit-db.com/exploits/48617
exploit
http://www.codeblocks.org/
product
https://sourceforge.net/projects/codeblocks
product

CVSS V4

Score:
4.6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Paras Bhatia
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