{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2018-25259", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-04-22T11:21:22.260Z", "datePublished": "2026-04-22T14:56:57.113Z", "dateUpdated": "2026-04-22T14:56:57.113Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-04-22T14:56:57.113Z"}, "datePublic": "2018-12-25T00:00:00.000Z", "title": "Terminal Services Manager 3.1 Buffer Overflow SEH", "descriptions": [{"lang": "en", "value": "Terminal Services Manager 3.1 contains a stack-based buffer overflow vulnerability in the computer names field that allows local attackers to execute arbitrary code by triggering structured exception handling. Attackers can craft a malicious input file with shellcode and jump instructions that overwrite the SEH handler pointer to execute calc.exe or other payloads when imported through the add computers wizard."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Missing Authentication for Critical Function", "cweId": "CWE-306", "type": "CWE"}]}], "affected": [{"vendor": "Lizardsystems", "product": "Terminal Services Manager", "versions": [{"version": "3.1", "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/46058", "name": "ExploitDB-46058", "tags": ["exploit"]}, {"url": "https://lizardsystems.com", "name": "Official Product Homepage", "tags": ["product"]}, {"name": "VulnCheck Advisory: Terminal Services Manager 3.1 Buffer Overflow SEH", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/terminal-services-manager-buffer-overflow-seh"}], "credits": [{"lang": "en", "value": "bzyo", "type": "finder"}], "x_generator": {"engine": "vulncheck"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Terminal Services Manager 3.1 contains a stack-based buffer overflow vulnerability in the computer names field that allows local attackers to execute arbitrary code by triggering structured exception handling. Attackers can craft a malicious input file with shellcode and jump instructions that overwrite the SEH handler pointer to execute calc.exe or other payloads when imported through the add computers wizard."}], "id": "CVE-2018-25259", "lastModified": "2026-04-22T21:23:52.620", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.5, "impactScore": 5.9, "source": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-04-22T16:16:45.437", "references": [{"source": "disclosure@vulncheck.com", "url": "https://lizardsystems.com"}, {"source": "disclosure@vulncheck.com", "url": "https://www.exploit-db.com/exploits/46058"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/terminal-services-manager-buffer-overflow-seh"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-22T18:30:44.069817+00:00", "value": {"mitigation_remediation": ["Apply the vendor\u2019s official patch or upgrade to a non\u2011vulnerable version of Terminal Services Manager.", "Restrict the Add Computers wizard to authenticated administrative users, ensuring that only privileged users can supply or import computer lists to prevent local execution of malicious files.", "If the import feature is not required, disable or remove it and monitor file handling with integrity controls to detect abnormal activity."], "summary": {"action": "Immediate Patch", "impact": "Local Arbitrary Code Execution"}, "threat_synthesis": {"affected_systems": "The affected product is Terminal Services Manager version\u202f3.1 from Lizardsystems. No other vendors or versions are listed. The vulnerability applies to all installations of this software that have not applied any vendor patch.", "description_and_impact": "Terminal Services Manager 3.1 contains a stack-based buffer overflow in the computer names field. An attacker can craft a malicious input file that, when processed by the Add\u202fComputers wizard, overwrites the structured exception handling pointer and executes arbitrary code such as calc.exe. The flaw allows local users to gain code execution on the host system.", "risk_and_exploitability": "The CVSS score of\u202f8.6 indicates a high severity, and the vulnerability is exploitable locally by anyone who can create or supply a malicious file. Although the EPSS score is not available, the lack of KEV listing suggests no known active exploitation campaigns. Attackers would need local access to the machine and would trigger the flaw by opening the crafted file through the wizard, leading to full code execution."}}}}, "created": "2026-04-22T18:45:24.007354+00:00", "updated": "2026-04-22T18:45:24.007410+00:00", "vendors": []}