Astra Linux – Vulnerability in grub2

A vulnerability has been identified in the GRUB2 bootloader’s network module, posing an immediate Denial of Service DoS risk. This flaw is a use-after-free issue, as the netsetvlan command is not properly unregistered when the network module is unloaded from memory. An attacker who can execute th...

ROS-20260319-73-0003

A vulnerability in the netsetvlan function of the Network module of the Grub2 operating system loader is related to the dereferencing of an expired pointer. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

Security update for grub2

This update for grub2 fixes the following issues: CVE-2025-54770: Fixed missing unregister call for netsetvlan command may lead to use-after-free bsc1252930 CVE-2025-54771: Fixed rubfileclose does not properly controls the fs refcount bsc1252931 CVE-2025-61661: Fixed out-of-bounds write in...

Grub2: use-after-free in net_set_vlan

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EUVD-2025-198077

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service DoS risk. This flaw is a Use-after-Free issue, caused because the netsetvlan command is not properly unregistered when the network module is unloaded from memory. An attacker who...

DEBIAN-CVE-2025-54770

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service DoS risk. This flaw is a Use-after-Free issue, caused because the netsetvlan command is not properly unregistered when the network module is unloaded from memory. An attacker who...

CVE-2025-54770

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service DoS risk. This flaw is a Use-after-Free issue, caused because the netsetvlan command is not properly unregistered when the network module is unloaded from memory. An attacker who...

UBUNTU-CVE-2025-54770

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service DoS risk. This flaw is a Use-after-Free issue, caused because the netsetvlan command is not properly unregistered when the network module is unloaded from memory. An attacker who...

CVE-2025-54770 Grub2: use-after-free in net_set_vlan

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service DoS risk. This flaw is a Use-after-Free issue, caused because the netsetvlan command is not properly unregistered when the network module is unloaded from memory. An attacker who...

CVE-2025-54770 Grub2: use-after-free in net_set_vlan

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service DoS risk. This flaw is a Use-after-Free issue, caused because the netsetvlan command is not properly unregistered when the network module is unloaded from memory. An attacker who...

CVE-2025-54770

CVE-2025-54770 is a Use-After-Free in GRUB2’s network module (net_set_vlan) triggered when the network module is unloaded, allowing a local attacker to access freed memory and cause a DoS crash. Connected advisories (ALAS/OpenSUSE/SUSE) confirm this issue across grub2 packages and list affected r...

CVE-2025-54770

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service DoS risk. This flaw is a Use-after-Free issue, caused because the netsetvlan command is not properly unregistered when the network module is unloaded from memory. An attacker who...