What is the CVSS score of CVE-2025-27997?

CVE-2025-27997 has a CVSS 3.1 base score of 8.4 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Battle Net are affected by CVE-2025-27997?

Organizations using Blizzard Battle.net face notable risk from CVE-2025-27997, a DLL hijacking vulnerability rated CVSS 8.4.

How to fix or mitigate CVE-2025-27997?

Within 7 days: Identify all affected systems running Blizzard Battle.net and apply vendor patches promptly. Monitor vendor channels for patch availability.

Battle Net CVE-2025-27997

HIGH

Uncontrolled Search Path Element (CWE-427)

2025-05-21 cve@mitre.org

Privilege Escalation Battle Net

8.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.4 HIGH

AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:43 vuln.today

CVE Published

May 21, 2025 - 16:15 nvd

HIGH 8.4

DescriptionCVE.org

An issue in Blizzard Battle.net v2.40.0.15267 allows attackers to escalate privileges via placing a crafted shell script or executable into the C:\ProgramData directory.

AnalysisAI

An issue in Blizzard Battle.net v2.40.0.15267 allows attackers to escalate privileges via placing a crafted shell script or executable into the C:\ProgramData directory. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-427. An issue in Blizzard Battle.net v2.40.0.15267 allows attackers to escalate privileges via placing a crafted shell script or executable into the C:\ProgramData directory. Affected products include: Blizzard Battle.Net.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.