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.
Metrics
Affected Vendors & Products
References
History
Wed, 14 Oct 2026 02:30:00 +0000
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ssvc
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Fri, 09 Oct 2026 09:15:00 +0000
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Winsiderss
Winsiderss system Informer |
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| Vendors & Products |
Winsiderss
Winsiderss system Informer |
Thu, 08 Oct 2026 20:30:00 +0000
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| 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. | |
| Title | System Informer before 4.0.26241.138 Incorrect Authorization in phsvc ALPC Port | |
| Weaknesses | CWE-863 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-08T20:15:56.603Z
Updated: 2026-10-14T01:19:53.192Z
Reserved: 2026-10-08T20:02:31.398Z
Link: CVE-2026-107782
Updated: 2026-10-14T01:19:44.627Z
Status : Awaiting Analysis
Published: 2026-10-08T21:17:53.227
Modified: 2026-10-14T02:16:58.353
Link: CVE-2026-107782
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