CVE-2025-27998

HIGH

Steam Client <1738026274 - Privilege Escalation

Title source: llm
STIX 2.1

Description

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

References (1)

Core 1

Scores

CVSS v3 8.4
EPSS 0.0017
EPSS Percentile 7.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-94
Status published
Published May 21, 2025
Tracked Since Feb 18, 2026