Battle.net.exe in Battle.Net 1.27.1.12428 suffers from an elevation of privileges…
Priority LOW 34CWE-281Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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"
Why it matters now
EPSS 0.0032 25th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-27383
- 2026-10-03 Alias added: GHSA-mqmr-qq67-c6hj
References
More Blizzard Battle.net vulnerabilities
- TI-2025-20667 An issue in Blizzard Battle.net v2.40.0.15267 allows attackers to escalate privileges via… CVSS 3.1HIGH 8.4
Sources
- CVE-2020-27383 · CVE Program
- CVE-2020-27383 · NVD
- FIRST EPSS
- GHSA-mqmr-qq67-c6hj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences