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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "3.4.4"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "R", "source": "cna", "vendor": "R-Project"}, "product": "r", "vendor": "r-project"}], "analysis": {"en": {"generated_at": "2026-03-17T14:37:30.306312+00:00", "value": {"mitigation_remediation": ["Upgrade R to version 3.4.5 or later from the R Project website.", "If an upgrade is not immediately possible, restrict local user accounts that can run the application and consider disabling the Language for menus preference option.", "Regularly monitor the R Project advisory page and apply any announced patches as soon as they become available."], "summary": {"action": "Immediate Patch", "impact": "Local Code Execution"}, "threat_synthesis": {"affected_systems": "The affected product is R\u2011Project R version 3.4.4 running on Windows 64\u2011bit systems. No additional sub\u2011versions or patches are listed; the vulnerability applies to this specific release.", "description_and_impact": "R 3.4.4 on Windows x64 contains a buffer overflow in the GUI Preferences language menu field. The overflow allows a local attacker to craft a payload that bypasses DEP and ASLR protections. By triggering a structured exception handler chain pivot, the attacker can execute arbitrary shellcode with the privileges of the R application. This vulnerability is classified as CWE\u2011787 (Buffer Overflow).", "risk_and_exploitability": "The CVSS score of 6.9 indicates moderate severity. The EPSS score of less than 1% suggests a low probability of exploitation in the wild, and the vulnerability is not currently listed in the CISA KEV catalog. Exploitation requires local access to the user account that runs the R application, and the attacker must be able to inject a crafted string via the Language for menus preference. Given the local nature and the need for privileged user interaction, the risk to remote attackers is limited."}}}}, "created": "2026-03-12T09:57:03.945048+00:00", "updated": "2026-03-20T15:29:38.785976+00:00", "vendors": ["r-project", "r-project$PRODUCT$r"]}