High 7.5Published Jan 30, 2026

CVE-2020-37038Code Blocks 20.03 - Denial Of Service

Updated under an hour ago (Oct 27, 2026, 1:40 AM ET)

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Exploited in the last 30 days

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: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-770
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)	20.03	CNA record

References

References

https://www.exploit-db.com/exploits/48617	exploit
http://www.codeblocks.org/	product
https://sourceforge.net/projects/codeblocks	product
https://www.vulncheck.com/advisories/code-blocks-denial-of-service	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.