Valve Steam 3.42.16.13 uses weak permissions for the files in the Steam program…
Priority LOW 23CWE-264Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
Valve Steam 3.42.16.13 uses weak permissions for the files in the Steam program directory, which allows local users to modify the files and possibly gain privileges as demonstrated by a Trojan horse Steam.exe file.
Why it matters now
EPSS 0.00784 56th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
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:o:valvesoftware:steamos:*:*:*:*:*:*:*:* | up to 3.42.16.13 | Vulnerable | Valvesoftware |
- cpe:2.3:o:valvesoftware:steamos:*:*:*:*:*:*:*:* Versions up to 3.42.16.13 Vulnerable ·Valvesoftware
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-5237
- 2026-10-03 Alias added: GHSA-2g73-r5mm-3q95
References
More Valvesoftware Steamos vulnerabilities
- TI-2013-05847 Valve Bug Reporter in the valve-bugreporter package 2.10+bsos1 in Valve SteamOS Beta… CVSS 2.0LOW 2.1
Sources
- CVE-2016-5237 · CVE Program
- CVE-2016-5237 · NVD
- FIRST EPSS
- GHSA-2g73-r5mm-3q95 · 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