The client detection protocol in Valve Steam allows remote attackers to cause a denial of…
Priority LOW 28CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The client detection protocol in Valve Steam allows remote attackers to cause a denial of service (process crash) via a crafted response to a broadcast packet.
Why it matters now
EPSS 0.02969 87th percentileScored 2026-11-07
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
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:valvesoftware:steam_client:*:*:*:*:*:*:*:* | before 2015-05-13 | Vulnerable | Valvesoftware |
- cpe:2.3:a:valvesoftware:steam_client:*:*:*:*:*:*:*:* Versions before 2015-05-13 Vulnerable ·Valvesoftware
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2015-4016
- 2026-10-03 Alias added: GHSA-6m3m-x8f4-hwpp
References
More Valvesoftware Steam Client vulnerabilities
- TI-2021-10883 Valve Steam before 2021-04-17, when a Source engine game is installed, allows remote… CVSS 3.1CRITICAL 9.0
- TI-2020-12227 An issue was discovered in Valve Steam Client 2.10.91.91. CVSS 3.1HIGH 7.8
- TI-2019-12806 Valve Steam Client before 2019-09-12 allows placing or appending partially controlled… CVSS 3.1HIGH 7.8
- TI-2019-11419 Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT… CVSS 3.0HIGH 7.8
- TI-2015-06635 Valve Steam 2.10.91.91 uses weak permissions (Users: read and write) for the Install… CVSS 2.0HIGH 7.2
- TI-2019-11420 Valve Steam Client for Windows through 2019-08-20 has weak folder permissions, leading to… CVSS 3.0HIGH 7.0
Sources
- CVE-2015-4016 · CVE Program
- CVE-2015-4016 · NVD
- FIRST EPSS
- GHSA-6m3m-x8f4-hwpp · 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