Dracut: dracut: root code execution via dhcp options command injection
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 1.1%
exploitation probability
1.1%top 38% 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 (Dynamic Host Configuration Protocol) options, such as a malicious hostname, to a system using dracut's legacy DHCP path. These options are improperly handled and written into temporary shell scripts without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs, potentially compromising the system's boot and network behavior.
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-2026:26532https://access.redhat.com/errata/RHSA-2026:26533https://access.redhat.com/errata/RHSA-2026:26534https://access.redhat.com/errata/RHSA-2026:26713https://access.redhat.com/security/cve/CVE-2026-6893https://bugzilla.redhat.com/show_bug.cgi?id=2459963https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6893.json