CVE-2025-27998

HighCVSS 8.4/10Last modified Jun 17, 2026

Description

An issue in Valvesoftware Steam Client Steam Client 1738026274 allows attackers to escalate privileges via a crafted executable or DLL.

Metrics

CVSS 3.1 8.4/10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-94

Affected software

No affected versions have been published.

Timeline

Published
May 21, 2025
Last modified
Jun 17, 2026
NVD status
Deferred

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CVE-2025-27998: High severity, CVSS 8.4 | Vulnix