{"id":"CVE-2026-107782","revision":"01a3e4883e9e47d4995cbca5a346c889","records":[{"revision":"01a3e4883e9e47d4995cbca5a346c889","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107782","aliases":[],"title":"System Informer before 4.0.26241.138 Incorrect Authorization in phsvc ALPC Port","description":"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.","state":0,"publishedAt":"2026-10-08T20:15:56.603+00:00","modifiedAt":"2026-10-14T01:19:53.192+00:00","affected":[{"ecosystem":"https://github.com/winsiderss/systeminformer","name":"System Informer","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"winsiderss\",\n                    \"product\": \"System Informer\",\n                    \"collectionURL\": \"https://github.com/winsiderss/systeminformer\",\n                    \"packageURL\": \"pkg:github/winsiderss/systeminformer\",\n                    \"repo\": \"https://github.com/winsiderss/systeminformer\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"4.0.26241.138\"\n                        },\n                        {\n                            \"version\": \"4.0.26241.138\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":8.5,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://github.com/winsiderss/systeminformer/commit/ce451a264a424f6f386b1615df651f8364aaeb9f","https://github.com/winsiderss/systeminformer/blob/v3.2.25011.2103/SystemInformer/phsvc/svcapiport.c#L196-L230","https://github.com/winsiderss/systeminformer/releases/tag/v4.0.26241.138","https://github.com/winsiderss/systeminformer","https://www.vulncheck.com/advisories/system-informer-before-4.0.26241.138-incorrect-authorization-in-phsvc-alpc-port"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107782","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-107782","identifiers":["CVE-2026-107782"]},"retained":false,"historicalAffected":[]}],"coverage":[]}