{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-107782", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-08T20:02:31.398Z", "datePublished": "2026-10-08T20:15:56.603Z", "dateUpdated": "2026-10-08T20:15:56.603Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-08T20:15:56.603Z"}, "datePublic": "2026-08-28T00:00:00.000Z", "title": "System Informer before 4.0.26241.138 Incorrect Authorization in phsvc ALPC Port", "descriptions": [{"lang": "en", "value": "System Informer before 4.0.26241.138 contains an incorrect authorization vulnerability in the phsvc helper that allows local attackers to reach privileged APIs by connecting from any Authenticode-signed process. Attackers can load code into a Microsoft-signed host like rundll32.exe, connect to SiSvcApiPort, and call PhSvcApiCreateService to execute code as SYSTEM."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Incorrect Authorization", "cweId": "CWE-863", "type": "CWE"}]}], "affected": [{"vendor": "winsiderss", "product": "System Informer", "collectionURL": "https://github.com/winsiderss/systeminformer", "packageURL": "pkg:github/winsiderss/systeminformer", "repo": "https://github.com/winsiderss/systeminformer", "defaultStatus": "unaffected", "versions": [{"version": "0", "status": "affected", "versionType": "custom", "lessThan": "4.0.26241.138"}, {"version": "4.0.26241.138", "status": "unaffected", "versionType": "custom"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.5, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH"}}], "references": [{"url": "https://github.com/winsiderss/systeminformer/commit/ce451a264a424f6f386b1615df651f8364aaeb9f", "tags": ["patch"], "name": "Patch Commit"}, {"url": "https://github.com/winsiderss/systeminformer/blob/v3.2.25011.2103/SystemInformer/phsvc/svcapiport.c#L196-L230", "tags": ["technical-description"]}, {"url": "https://github.com/winsiderss/systeminformer/releases/tag/v4.0.26241.138", "tags": ["release-notes"], "name": "System Informer v4.0.26241.138 Release Notes"}, {"url": "https://github.com/winsiderss/systeminformer", "tags": ["product"]}, {"name": "VulnCheck Advisory: System Informer before 4.0.26241.138 Incorrect Authorization in phsvc ALPC Port", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/system-informer-before-4.0.26241.138-incorrect-authorization-in-phsvc-alpc-port"}], "credits": [{"lang": "en", "value": "Muhammad Ali", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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