{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2019-25656", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-04-05T12:42:35.055Z", "datePublished": "2026-04-05T20:45:12.540Z", "dateUpdated": "2026-04-06T18:30:46.713Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-04-05T20:45:12.540Z"}, "datePublic": "2019-01-31T00:00:00.000Z", "title": "R i386 3.5.0 Local Buffer Overflow SEH", "descriptions": [{"lang": "en", "value": "R i386 3.5.0 contains a local buffer overflow vulnerability in the GUI Preferences dialog that allows local attackers to trigger a structured exception handler (SEH) overwrite by supplying malicious input. Attackers can craft a payload string in the 'Language for menus and messages' field to overwrite SEH records and achieve code execution with calculator or arbitrary shellcode."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Out-of-bounds Write", "cweId": "CWE-787", "type": "CWE"}]}], "affected": [{"vendor": "R-Project", "product": "R i386", "versions": [{"version": "3.5.0", "status": "affected"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "baseScore": 8.6, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://www.exploit-db.com/exploits/46288", "name": "ExploitDB-46288", "tags": ["exploit"]}, {"url": "https://www.r-project.org/", "name": "Official Product Homepage", "tags": ["product"]}, {"url": "https://cran.r-project.org/bin/windows/base/old/3.5.0/R-3.5.0-win.exe", "name": "Product Reference", "tags": ["product"]}, {"name": "VulnCheck Advisory: R i386 3.5.0 Local Buffer Overflow SEH", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/r-i386-local-buffer-overflow-seh"}], "credits": [{"lang": "en", "value": "Dino Covotsos - Telspace Systems", "type": "finder"}], "x_generator": {"engine": "vulncheck"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-06T18:30:10.877964Z", "id": "CVE-2019-25656", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-06T18:30:46.713Z"}}]}}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "3.5.0"}}], "enrichment": {"confidence": 81.0, "confidence_source": "matching", "scores": [{"score": 81.0, "source": "matching"}]}, "original": {"product": "R i386", "source": "cna", "vendor": "R-Project"}, "product": "r", "vendor": "r-project"}], "analysis": {"en": {"generated_at": "2026-04-05T23:53:43.533064+00:00", "value": {"mitigation_remediation": ["Apply the latest R i386 package that contains a patch for this buffer overflow or upgrade to a newer release such as 3.5.1 or later."], "summary": {"action": "Immediate Patch", "impact": "Local Code Execution"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the R i386 implementation of the R Project, specifically the 3.5.0 release compiled for Windows. No other product versions or vendors are listed in the CNA data for this advisory.", "description_and_impact": "The flaw is a local buffer overflow in the Windows GUI Preferences dialog of R i386 3.5.0. By supplying a crafted string in the 'Language for menus and messages' field, a local attacker can overwrite Structured Exception Handler (SEH) records and trigger arbitrary code execution such as launching a calculator or injecting shellcode. This weakness corresponds to CWE\u2011787, where a program writes beyond the bounds of a buffer.", "risk_and_exploitability": "The CVSS score of 8.6 classifies the defect as high severity. The EPSS score is not provided and the vulnerability is not listed in the CISA KEV catalog, yet a public exploit is available. Exploitation requires local access to the machine and the ability to launch the affected application; if a standard user can run R, code execution is possible, potentially leading to system compromise."}}}}, "created": "2026-04-06T20:23:00.950744+00:00", "updated": "2026-04-06T21:56:21.451469+00:00", "vendors": ["r-project", "r-project$PRODUCT$r"]}