{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2020-37121", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-02-03T16:27:45.303Z", "datePublished": "2026-02-05T16:13:31.455Z", "dateUpdated": "2026-02-05T21:36:59.236Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Code::Blocks", "vendor": "Code::Blocks", "versions": [{"status": "affected", "version": "16.01"}]}], "credits": [{"lang": "en", "type": "finder", "value": "T3jv1l"}], "datePublic": "2020-04-17T00:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>CODE::BLOCKS 16.01 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by overwriting Structured Exception Handler with crafted Unicode characters. Attackers can create a malicious M3U playlist file with 536 bytes of buffer and shellcode to trigger remote code execution.</p>"}], "value": "CODE::BLOCKS 16.01 contains a buffer overflow vulnerability that allows attackers to execute arbitrary code by overwriting Structured Exception Handler with crafted Unicode characters. Attackers can create a malicious M3U playlist file with 536 bytes of buffer and shellcode to trigger remote code execution."}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "baseScore": 6.7, "baseSeverity": "MEDIUM", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-121", "description": "Stack-based Buffer Overflow", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-02-05T21:36:59.236Z"}, "references": [{"name": "ExploitDB-48344", "tags": ["exploit"], "url": "https://www.exploit-db.com/exploits/48344"}, {"name": "CODE::BLOCKS Product Homepage", "tags": ["product"], "url": "https://www.codeblocks.org/"}, {"name": "CODE::BLOCKS SourceForge Repository", "tags": ["product"], "url": "https://sourceforge.net/projects/codeblocks/"}, {"name": "VulnCheck Advisory: CODE::BLOCKS 16.01 - Buffer Overflow (SEH) UNICODE", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/codeblocks-buffer-overflow-seh-unicode"}], "source": {"discovery": "UNKNOWN"}, "title": "CODE::BLOCKS 16.01 - Buffer Overflow (SEH) UNICODE", "x_generator": {"engine": "vulncheck"}}}}

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