RCE in Red Hat Enterprise Linux 10
CVE-2026-6893
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.031 (87.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.031 · change: +0.019
Affected products
- Red Hat Enterprise Linux 10 — versions 0:107-7.el10_2
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:049-244.git20260529.el8_10
- Red Hat Enterprise Linux 9 — versions 0:057-115.git20260527.el9_8
- Red Hat Hardened Images — versions 109-6.hum1
- Red Hat Openshift Container Platform 4
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-6893 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- access.redhat.com/errata/RHSA-2026:26533 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:26532 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:26534 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:26713 (vendor-advisory)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- access.redhat.com/errata/RHSA-2026:57580 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:57775 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:57785 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-6893?
- CVE-2026-6893 is a high-severity vulnerability in Red Hat Enterprise Linux 10, classified under OS Command Injection. CVSS score: 7.5/10. Published 2026-06-10.
- How severe is CVE-2026-6893?
- High severity. CVSS v3 base score is 7.5 out of 10.