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CVE-2019-15315

N/A
Published: August 21, 2019 at 07:35 PM UTC
Updated: June 17, 2026 at 02:20 AM UTC
1 product affected across 1 vendorSteam Client· also runs on 1 platform

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Severity
N/A
Exploit prediction
EPSS 0.4%

Description

Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT AUTHORITY\SYSTEM) because local users can replace the current versions of SteamService.exe and SteamService.dll with older versions that lack the CVE-2019-14743 patch.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Steam Client· Valvesoftware
95%
v ≤ 2019-08-16
microsoft-windows (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://xiaoyinl.github.io/steam_EoP_bypass.html

CVSS

7.2HIGH[email protected]
Confidentiality
COMPLETE
Integrity
COMPLETE
Availability
COMPLETE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-732

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