{"id":"CVE-2026-107782","title":"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","summary":"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 i…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-863"],"published":"2026-10-08","updated":"2026-10-14","sourceUpdated":"2026-10-14T02:16:58.353","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107782","references":[{"url":"https://github.com/winsiderss/systeminformer","label":"disclosure@vulncheck.com"},{"url":"https://github.com/winsiderss/systeminformer/blob/v3.2.25011.2103/SystemInformer/phsvc/svcapiport.c#L196-L230","label":"disclosure@vulncheck.com"},{"url":"https://github.com/winsiderss/systeminformer/commit/ce451a264a424f6f386b1615df651f8364aaeb9f","label":"disclosure@vulncheck.com"},{"url":"https://github.com/winsiderss/systeminformer/releases/tag/v4.0.26241.138","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/system-informer-before-4.0.26241.138-incorrect-authorization-in-phsvc-alpc-port","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"epss":0.00115,"epssPercentile":0.01528,"ingestedAt":"2026-10-08T22:11:53.859Z","vendor":"winsiderss","product":"System Informer","affected":["system_informer < 4.0.26241.138"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-14T01:19:38.922146Z"},"slug":"CVE-2026-107782","body":"## Overview\n\nSystem 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}