CVE-2026-15816EPSS p16.4%
CVE-2026-15816CVE-2026-15816
Description
A flaw was found in dracut. The die() error-handling function writes its message into a shell script under the initramfs emergency-hook directory without properly shell-quoting it. When the message contains data derived from the DHCP ROOT_PATH option, an attacker on the adjacent network who controls a rogue DHCP server can inject a command-substitution sequence that executes as root the next time dracut sources its emergency hook scripts during standard boot-failure handling.
Scoring
| CVSS | 7.5 () |
| Vector | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.25% probability of exploitation · percentile 16.4% · 2026-08-08T12:02:54Z |
| Last modified | 2026-08-07 |