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Linux Distros Unpatched Vulnerability : CVE-2025-54770
medium Nessus Plugin ID 275747
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Synopsis
The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.Description
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.- 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 net_set_vlan command is not properly unregistered when the network module is unloaded from memory. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability (CVE-2025-54770)
Note that Nessus relies on the presence of the package as reported by the vendor.
Solution
There is no known solution at this time.See Also
https://access.redhat.com/security/cve/cve-2025-54770
Plugin Details
Severity: Medium
ID: 275747
File Name: unpatched_CVE_2025_54770.nasl
Version: 1.2
Type: local
Agent: unix
Family: Misc.
Published: 11/18/2025
Updated: 11/19/2025
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 4.3
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2025-54770
CVSS v3
Risk Factor: Medium
Base Score: 4.9
Temporal Score: 4.5
Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:centos:centos:grub2-efi-aa64-modules, p-cpe:/a:centos:centos:grub2-efi-x64-cdboot, p-cpe:/a:centos:centos:grub2-tools-extra, p-cpe:/a:redhat:enterprise_linux:grub2-common, p-cpe:/a:redhat:enterprise_linux:grub2-ppc64-modules, p-cpe:/a:centos:centos:grub2-tools-efi, p-cpe:/a:redhat:enterprise_linux:grub2-efi-modules, p-cpe:/a:centos:centos:grub2-tools-minimal, p-cpe:/a:redhat:enterprise_linux:grub2-efi-x64, p-cpe:/a:centos:centos:grub2-pc, p-cpe:/a:centos:centos:grub2-efi-x64-modules, p-cpe:/a:redhat:enterprise_linux:grub2, p-cpe:/a:redhat:enterprise_linux:grub2-pc, p-cpe:/a:redhat:enterprise_linux:grub2-efi-ia32-cdboot, p-cpe:/a:redhat:enterprise_linux:grub2-efi-ia32, cpe:/o:canonical:ubuntu_linux:25.04, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:grub2-efi-x64-modules, p-cpe:/a:centos:centos:grub2-pc-modules, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:grub2-efi-aa64-cdboot, p-cpe:/a:centos:centos:grub2-ppc-modules, p-cpe:/a:redhat:enterprise_linux:grub2-ppc64, p-cpe:/a:redhat:enterprise_linux:grub2-ppc64le, p-cpe:/a:redhat:enterprise_linux:grub2-tools-efi, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:centos:centos:grub2-efi-ia32, p-cpe:/a:redhat:enterprise_linux:grub2-ppc64le-modules, p-cpe:/a:canonical:ubuntu_linux:grub2-unsigned, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:redhat:enterprise_linux:grub2-efi, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:redhat:enterprise_linux:grub2-ppc-modules, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:grub2, p-cpe:/a:centos:centos:grub2-common, p-cpe:/a:centos:centos:grub2-efi, p-cpe:/a:centos:centos:grub2-efi-x64, p-cpe:/a:centos:centos:grub2-ppc64-modules, p-cpe:/a:centos:centos:grub2-ppc64le-modules, p-cpe:/a:centos:centos:grub2-tools, p-cpe:/a:redhat:enterprise_linux:grub2-tools, p-cpe:/a:redhat:enterprise_linux:grub2-tools-minimal, p-cpe:/a:centos:centos:grub2-ppc64le, p-cpe:/a:debian:debian_linux:grub2, p-cpe:/a:redhat:enterprise_linux:grub2-efi-x64-cdboot, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:centos:centos:grub2-efi-aa64-cdboot, p-cpe:/a:centos:centos:grub2-efi-ia32-modules, p-cpe:/a:redhat:enterprise_linux:grub2-efi-aa64, p-cpe:/a:redhat:enterprise_linux:grub2-efi-ia32-modules, p-cpe:/a:centos:centos:grub2-efi-modules, p-cpe:/a:redhat:enterprise_linux:grub2-pc-modules, cpe:/o:canonical:ubuntu_linux:25.10, p-cpe:/a:centos:centos:grub2-ppc64, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:grub2-tools-extra, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:redhat:enterprise_linux:grub2-efi-aa64-modules, p-cpe:/a:centos:centos:grub2-efi-aa64, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:grub2, p-cpe:/a:centos:centos:grub2-efi-ia32-cdboot, p-cpe:/a:canonical:ubuntu_linux:grub2-signed
Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 11/18/2025
Reference Information
CVE: CVE-2025-54770