Dracut: dracut: root code execution via dhcp options command injection in networkmanager initrd module
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 1.0%
exploitation probability
1.0%top 41% of all CVEs
observed exploitation
nono source reports it
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:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Hardened ImagesRed Hat · Red Hat OpenShift Container Platform 4References
https://access.redhat.com/errata/RHSA-2026:26534https://access.redhat.com/errata/RHSA-2026:40700https://access.redhat.com/security/cve/CVE-2026-16445https://bugzilla.redhat.com/show_bug.cgi?id=2459963https://bugzilla.redhat.com/show_bug.cgi?id=2503147https://github.com/dracutdevs/dracut/commit/e509c638e6