CVE-2026-16445: falha de alta gravidade em Red Hat Enterprise Linux 10
Dracut: dracut: root code execution via dhcp options command injection in networkmanager initrd module
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.5epss 3.2%
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
Produtos afetados
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 8.4 Advanced Mission Critical Update SupportRed Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Hardened ImagesRed Hat · Red Hat OpenShift Container Platform 4.12Red Hat · Red Hat OpenShift Container Platform 5CVEs relacionadas — Red Hat Enterprise Linux 10
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Referências
https://access.redhat.com/errata/RHSA-2026:26534https://access.redhat.com/errata/RHSA-2026:40700https://access.redhat.com/errata/RHSA-2026:61252https://access.redhat.com/errata/RHSA-2026:69118https://access.redhat.com/errata/RHSA-2026:69119https://access.redhat.com/errata/RHSA-2026:90272https://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