A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vulnerability by providing specially crafted DHCP options, such as a malicious root-path, next-server, or bootfile name, to a system using dracut's NetworkManager-based initrd network module. These options are improperly handled and written into a temporary shell script without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs during system boot.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Redhat_linux | — | Upgrade dracut-squashUpgrade dracut-debuginfoUpgrade dracut-config-genericUpgrade dracut-debugsourceUpgrade dracutUpgrade dracut-networkUpgrade dracut-toolsUpgrade dracut-liveUpgrade dracut-capsUpgrade dracut-config-rescue | Sep 21, 2026 | Jul 21, 2026 |
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