{"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":"2026-08-06T21:10:52.750Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-08-06T21:10:52.750Z"},"title":"CODE::BLOCKS 16.01 - Buffer Overflow (SEH) UNICODE","datePublic":"2020-04-17T00:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-121","description":"CWE-121 Stack-based Buffer Overflow","type":"CWE"}]}],"affected":[{"vendor":"Code::Blocks","product":"Code::Blocks","versions":[{"status":"affected","version":"16.01"}],"defaultStatus":"unaffected"}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:codeblocks:code\\\\:16.01:*:*:*:*:*:*:*"}]}]}],"descriptions":[{"lang":"en","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 text file with 1982 bytes of buffer and shellcode to trigger remote code execution.","supportingMedia":[{"type":"text/html","base64":false,"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 text file with 1982 bytes of buffer and shellcode to trigger remote code execution.</p>"}]}],"references":[{"url":"https://nutcrackerssecurity.github.io/posts/windows-exploit-dev-part-7/","name":"ExploitDB-48344","tags":["exploit"]},{"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","name":"VulnCheck Advisory: CODE::BLOCKS 16.01 - Buffer Overflow (SEH) UNICODE","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"ACTIVE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.7,"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"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseSeverity":"MEDIUM","baseScore":5.5,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}}],"credits":[{"lang":"en","value":"T3jv1l","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"vulncheck"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-06T20:33:50.462724Z","id":"CVE-2020-37121","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-02-06T20:33:58.527Z"}}]}}