What is the CVSS score of CVE-2020-37038?

CVE-2020-37038 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2020-37038?

Yes, a public proof-of-concept exploit is available for CVE-2020-37038. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2020-37038?

Within 24 hours: Identify and inventory all Code Blocks 20.03 installations across the organization. Within 7 days: Implement input validation controls on the FSymbols search field or disable the search functionality if feasible; consider upgrading to Code Blocks 20.04 or later if available. Within 30 days: Complete migration of all users away from vulnerable version 20.03 to a patched release, or evaluate alternative IDE solutions if upgrades are not viable.

CVE-2020-37038

HIGH

Allocation of Resources Without Limits or Throttling (CWE-770)

2026-01-30 disclosure@vulncheck.com

Denial Of Service

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

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 7.5

DescriptionCVE.org

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.

AnalysisAI

Technical ContextAI

This vulnerability (CWE-770: Allocation of Resources Without Limits or Throttling) 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.

Affected ProductsAI

Code Blocks 20.03 contains a denial of service vulnerability that

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

CVE-2020-37038 vulnerability details – vuln.today

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CVE-2020-37038

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

Affected ProductsAI

RemediationAI

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External POC / Exploit Code