{"id":"CVE-2018-25258","state":"PUBLISHED","title":"RGui 3.5.0 Local Buffer Overflow SEH DEP Bypass","description":"RGui 3.5.0 contains a local buffer overflow vulnerability in the GUI preferences dialog that allows attackers to bypass DEP protections through structured exception handling exploitation. Attackers can craft malicious input in the Language for menus and messages field to trigger a stack-based buffer overflow, execute a ROP chain for VirtualAlloc allocation, and achieve arbitrary code execution.","publishedAt":"2026-04-12T12:28:44.496Z","updatedAt":"2026-04-13T18:06:18.442Z","severity":{"score":8.6,"label":"High","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["R-Project RGui"],"affected":[{"vendor":"R-Project","product":"RGui","versions":[{"version":"3.5.0","status":"affected"}]}],"references":["https://www.exploit-db.com/exploits/46107","https://www.r-project.org/","https://cran.r-project.org/bin/windows/base/old/3.5.0/R-3.5.0-win.exe","https://www.vulncheck.com/advisories/rgui-local-buffer-overflow-seh-dep-bypass"],"weaknesses":["CWE-434"],"ingestedAt":"2026-10-29T19:44:44.295Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2018/25xxx/CVE-2018-25258.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2018-25258","state":"PUBLISHED","datePublished":"2026-04-12T12:28:44.496Z","dateUpdated":"2026-04-13T18:06:18.442Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-04-12T12:13:36.489Z"},"containers":{"cna":{"title":"RGui 3.5.0 Local Buffer Overflow SEH DEP Bypass","descriptions":[{"lang":"en","value":"RGui 3.5.0 contains a local buffer overflow vulnerability in the GUI preferences dialog that allows attackers to bypass DEP protections through structured exception handling exploitation. Attackers can craft malicious input in the Language for menus and messages field to trigger a stack-based buffer overflow, execute a ROP chain for VirtualAlloc allocation, and achieve arbitrary code execution."}],"affected":[{"vendor":"R-Project","product":"RGui","versions":[{"version":"3.5.0","status":"affected"}]}],"references":[{"url":"https://www.exploit-db.com/exploits/46107","name":"ExploitDB-46107","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"]},{"url":"https://www.vulncheck.com/advisories/rgui-local-buffer-overflow-seh-dep-bypass","name":"VulnCheck Advisory: RGui 3.5.0 Local Buffer Overflow SEH DEP Bypass","tags":["third-party-advisory"]}],"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"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-434","lang":"en","description":"Unrestricted Upload of File with Dangerous Type","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-04-12T12:28:44.496Z"},"datePublic":"2019-01-10T00:00:00.000Z","credits":[{"lang":"en","value":"bzyo","type":"finder"}],"x_generator":{"engine":"vulncheck"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2018-25258","role":"CISA Coordinator","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-04-13T17:38:10.324387Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-13T18:06:18.442Z"}}]}}}