GHSA-mx65-q648-g54fHighCVSS 7.8
System Informer before 4.0.26241.138 contains an incorrect authorization vulnerability in the...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-107782
- https://github.com/winsiderss/systeminformer/commit/ce451a264a424f6f386b1615df651f8364aaeb9f
- https://github.com/winsiderss/systeminformer
- 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://www.vulncheck.com/advisories/system-informer-before-4.0.26241.138-incorrect-authorization-in-phsvc-alpc-port
- https://github.com/advisories/GHSA-mx65-q648-g54f