CVE-2020-12242

7.8 highEPSS 1.1%

High (7.8) in valvesoftware source. EPSS 1.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 65% of CVEs (scores of 2026-10-31)
CWE: CWE-78
Published: 2020-04-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

valvesoftware:source

References

https://0xem.ma/cve/2020/04/28/Source-hl2-relaunch-exec.html
https://0xem.ma/cve/2020/04/28/Source-hl2-relaunch-exec.html

Check your stack JSON