Valve Source allows local users to gain privileges by writing to the /tmp/hl2_relaunch…
Priority LOW 36CWE-78Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- 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 · NVD. Fix status from CNA. Impact type from CWE-78.
Summary
Valve Source allows local users to gain privileges by writing to the /tmp/hl2_relaunch file, which is later executed in the context of a different user account.
Why it matters now
EPSS 0.01088 65th 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
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:valvesoftware:source:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Valvesoftware |
- cpe:2.3:a:valvesoftware:source:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Valvesoftware
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12242
- 2026-10-03 Alias added: GHSA-wmwr-9cj7-xrgf
References
Sources
- CVE-2020-12242 · CVE Program
- CVE-2020-12242 · NVD
- FIRST EPSS
- GHSA-wmwr-9cj7-xrgf · 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