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CVE-2026-107782

7.8, high

Winsiderss System Informer Incorrect Authorization Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.8, high high CVSS v3.1
EPSS, next 30 days
0.1% higher than 1.4% of scored CVEs
Exploitation
No public evidence
Published
8 Oct 20269 days ago

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.

Details

Vendor
Winsiderss
Product
System Informer
Weakness
CWE-863 (opens in a new tab)
Status
Awaiting analysis
Updated
8 Oct 2026
Assigner
disclosure@vulncheck.com

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References 5

Patches and fixes 1

Other references 4

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Beyond this page

Is CVE-2026-107782 in your network?

This page tells you how dangerous CVE-2026-107782 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.