TI-2025-20667 Aliases CVE-2025-27997 GHSA-9mgg-ww23-jfhc

An issue in Blizzard Battle.net v2.40.0.15267 allows attackers to escalate privileges via…

LOW 38CWE-427Published 2025-05-21 · Updated 2025-05-21

Key facts

Attack vector: Local
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-427.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00181 7th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:blizzard:battle.net:2.40.0.15267:::::::*	2.40.0.15267	Vulnerable	Blizzard

cpe:2.3:a:blizzard:battle.net:2.40.0.15267:*:*:*:*:*:*:* Versions 2.40.0.15267 Vulnerable ·Blizzard

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-27997
2026-10-03 Alias added: GHSA-9mgg-ww23-jfhc

References

Advisory 1

https://gist.github.com/sornram9254/4593dd5eb2bcca50d68dc6ac70e40b24

TI-2020-16649 Battle.net.exe in Battle.Net 1.27.1.12428 suffers from an elevation of privileges… CVSS 3.1HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences