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CVE-2020-27383

HIGH

7.8

CVSS Score

Published: June 9, 2021 at 06:20 PM UTC

Updated: June 17, 2026 at 03:09 AM UTC

1 product affected across 1 vendorBattle.Net

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Severity

HIGH7.8

Exploit prediction

EPSS 0.3%

Description

Battle.net.exe in Battle.Net 1.27.1.12428 suffers from an elevation of privileges vulnerability which can be used by an "Authenticated User" to modify the existing executable file with a binary of his choice. The vulnerability exist due to weak set of permissions being granted to the "Authenticated Users Group" which grants the (F) Flag aka "Full Control"

Affected

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

Battle.Net · Blizzard

95%

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_MISCExploitThird Party Advisory

Source: [email protected]

https://github.com/FreySolarEye/CVE/blob/master/Battle%20Net%20Launcher%20Local%20Privilege%20Escalation

CVSS

7.8HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-281

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