Updated cifs-utils packages fix a security vulnerability

The updated packages fix a security vulnerability: Local privilege escalation via forged cifs.spnego key description in cifs.upcall. CVE-2026-12505...

OESA-2026-3028 cifs-utils security update

The in-kernel CIFS filesystem is generally the preferred method for mounting SMB/CIFS shares on Linux. Security Fixes: A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled...

AlmaLinux 9 : cifs-utils (ALSA-2026:39576)

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:39576 advisory. cifs-utils: local privilege escalation via forged cifs.spnego key description in cifs.upcall CVE-2026-12505 Bug Fixes and Enhancements: cifs-utils: regression wit...

RHEL 8 : cifs-utils (RHSA-2026:39575)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:39575 advisory. The SMB/CIFS protocol is a standard file sharing protocol widely deployed on Microsoft Windows machines. The cifs-utils packages contain tools for...

Important: cifs-utils security, bug fix, and enhancement update

The SMB/CIFS protocol is a standard file sharing protocol widely deployed on Microsoft Windows machines. The cifs-utils packages contain tools for mounting shares on Linux using the SMB/CIFS protocol. The tools in this package work in conjunction with support in the kernel to allow one to mount a...

Low: cifs-utils

Issue Overview: No CVE associated with this advisory Affected Packages: cifs-utils Issue Correction: Run dnf update cifs-utils --releasever 2023.12.20260706 or dnf update --advisory ALAS2023-2026-1927 --releasever 2023.12.20260706 to update your system. More information on how to update your syst...

cifs-utils security update

An update is available for cifs-utils. 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 SMB/CIFS protocol is a standard file sharing protocol widely deployed...

RLSA-2026:32990 Important: cifs-utils security update

The SMB/CIFS protocol is a standard file sharing protocol widely deployed on Microsoft Windows machines. The cifs-utils packages contain tools for mounting shares on Linux using the SMB/CIFS protocol. The tools in this package work in conjunction with support in the kernel to allow one to mount a...

RHEL 10 : cifs-utils (RHSA-2026:32990)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:32990 advisory. The SMB/CIFS protocol is a standard file sharing protocol widely deployed on Microsoft Windows machines. The cifs-utils packages contain tools for...

Cifs-utils: local privilege escalation via forged cifs.spnego key description in cifs.upcall

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CVE-2026-12505

A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted requestkey payload to trick the root-own...

DEBIAN-CVE-2026-12505

A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted requestkey payload to trick the root-own...

CVE-2026-12505

A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted requestkey payload to trick the root-own...

UBUNTU-CVE-2026-12505

A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted requestkey payload to trick the root-own...

CVE-2026-12505

A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted requestkey payload to trick the root-own...

CVE-2026-12505 Cifs-utils: local privilege escalation via forged cifs.spnego key description in cifs.upcall

A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted requestkey payload to trick the root-own...

Ubuntu 20.04 LTS : Linux kernel (FIPS) vulnerabilities (USN-7585-2)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7585-2 advisory. It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls...

The vulnerability of the cifs_get_spnego_key() function in the cifs.upcall tool of the cifs-utils package in Linux kernel allows a attacker to elevate their privileges to root and execute arbitrary code.

The vulnerability of the cifsgetspnegokey function in the cifs.upcall tool of the cifs-utils package in Linux kernel systems is related to the lack of authentication for the critical function. Exploiting this vulnerability can allow an attacker to elevate their privileges to root and execute...

Linux Distros Unpatched Vulnerability : CVE-2026-31392

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - smb: client: fix krb5 mount with username option Customer reported that some of their krb5 mounts were failing against a single server as the client was trying ...

SUSE CVE-2026-31392

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix krb5 mount with username option Customer reported that some of their krb5 mounts were failing against a single server as the client was trying to mount the shares with wrong credentials. It turned out the client...