Vigie VulnDBEuropean-hosted Vulnerability DB
FR
Menu

CVE-2026-6893

Dracut: dracut: root code execution via dhcp options command injection

HIGH 7.5

At a glance

Source
NVD
EPSS
EPSS 1.27 % · percentile 70 ()
State
PUBLISHED
Published
Updated
Assigner
redhat
NVD status
Awaiting Analysis

Description

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.

Weaknesses (CWE)

  • CWE-78 — Improper Neutralization of Special Elements used in an OS Command

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.5CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hredhat
CVSS 3.1HIGH 7.5CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hredhat-SADP
CVSS 3.1HIGH 7.5CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · secalert@redhat.com (Secondary)
CVSS 3.1HIGH 7.5CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary)

European references

CERT-FR advisories

Affected products

ProductVersions
Red Hat · Red Hat Enterprise Linux 10unaffected 0:107-7.el10_2 < *
Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:105-4.el10_0.1 < *
Red Hat · Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONunaffected 0:004-413.el6_10 < *
Red Hat · Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONunaffected 0:004-414.el6_10 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:033-577.el7_9 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:049-244.git20260529.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:049-138.git20220131.el8_4.1 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:049-138.git20220131.el8_4.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:049-203.git20220511.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onunaffected 0:049-203.git20220511.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:049-223.git20230119.el8_8.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:049-223.git20230119.el8_8.1 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:057-115.git20260527.el9_8 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:057-115.git20260527.el9_8 < *
Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:057-25.git20250717.el9_2.2 < *
Red Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsunaffected 0:057-54.git20250423.el9_4.3 < *
Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:057-89.git20250311.el9_6.1 < *
Red Hat · Red Hat OpenShift Container Platform 4.12unaffected 412.86.202610250235-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.13unaffected 413.92.202609080414-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.14unaffected 414.92.202609011250-0 < *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD