SUSE-SU-2026:4211-1 Security update for kbd

This update for kbd fixes the following issue: - CVE-2026-72693: local privilege escalation in openvt due to incorrect process owner verification that allows passwordless root login bsc1275441...

MiracleLinux 9 : kbd-2.4.0-12.el9_8 (AXSA:2026-1640:01)

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1640:01 advisory. kbd: Local privilege escalation in openvt via incorrect process owner verification allowing passwordless root login CVE-2026-72693 Tenable has extracted the...

Kbd: local privilege escalation in openvt via incorrect process owner verification allowing passwordless root login

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kbd security update

An update is available for kbd. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kbd packages provide tools for managing console behavior on a Linux system,...

RockyLinux 9 : kbd (RLSA-2026:57610)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:57610 advisory. kbd: Local privilege escalation in openvt via incorrect process owner verification allowing passwordless root login CVE-2026-72693 Tenable has extracted the...

AlmaLinux 9 : kbd (ALSA-2026:57610)

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:57610 advisory. kbd: Local privilege escalation in openvt via incorrect process owner verification allowing passwordless root login CVE-2026-72693 Tenable has extracted the...

RockyLinux 10 : kbd (RLSA-2026:57597)

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:57597 advisory. kbd: Local privilege escalation in openvt via incorrect process owner verification allowing passwordless root login CVE-2026-72693 Tenable has extracted the...

AlmaLinux 10 : kbd (ALSA-2026:57597)

The remote AlmaLinux 10 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:57597 advisory. kbd: Local privilege escalation in openvt via incorrect process owner verification allowing passwordless root login CVE-2026-72693 Tenable has extracted the...

Moderate: Red Hat Security Advisory: kbd security update

An update for kbd is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CV...

kbd: Local privilege escalation in openvt via incorrect process owner verification allowing passwordless root login

openvt -u is intended to identify the owner of the current VT and then execute login as that user from a privileged context. In the documented kbrequest/init usage, the ownership test in authenticateuser relies on stat"/proc//fd/0". stat on /proc//fd/0 follows the symlink to the underlying TTY...

Moderate: kbd security update

The kbd packages provide tools for managing console behavior on a Linux system, including the keyboard, screen fonts, virtual terminals, and font files. Security Fixes: kbd: Local privilege escalation in openvt via incorrect process owner verification allowing passwordless root login CVE-2026-726...

ALSA-2026:57597 Moderate: kbd security update

The kbd packages provide tools for managing console behavior on a Linux system, including the keyboard, screen fonts, virtual terminals, and font files. Security Fixes: kbd: Local privilege escalation in openvt via incorrect process owner verification allowing passwordless root login CVE-2026-726...

RHEL 9 : kbd (RHSA-2026:57610)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:57610 advisory. The kbd packages provide tools for managing console behavior on a Linux system, including the keyboard, screen fonts, virtual terminals, and font...

RHEL 10 : kbd (RHSA-2026:57597)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:57597 advisory. The kbd packages provide tools for managing console behavior on a Linux system, including the keyboard, screen fonts, virtual terminals, and font...

CVE-2026-72693

CVE-2026-72693 describes a privilege-escalation path in deployments using openvt -u with kbrequest/init. The root cause is an ownership check in authenticate_user() that uses stat("/proc//fd/0"), which follows the fd to the TTY node and reports the TTY owner instead of the process owner. If the T...