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CVE-2025-54770

MEDIUM
Expired Pointer Dereference (CWE-825)
2025-11-18 secalert@redhat.com
Denial Of Service
4.9
CVSS 3.1 · Vendor: redhat
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Severity by source

Vendor (redhat) PRIMARY
4.9 MEDIUM
AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
SUSE
MEDIUM
qualitative
Red Hat
4.9 MEDIUM
qualitative

Primary rating from Vendor (redhat).

CVSS VectorVendor: redhat

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

3
Patch released
Apr 06, 2026 - 14:30 nvd
Patch available
Analysis Generated
Mar 28, 2026 - 19:22 vuln.today
CVE Published
Nov 18, 2025 - 19:15 nvd
MEDIUM 4.9

DescriptionCVE.org

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 An attacker who can execute this command can force the system to access memory locations that are no longer valid.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

AnalysisAI

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service (DoS) risk. Rated medium severity (CVSS 4.9), this vulnerability is no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-825. 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 An attacker who can execute this command can force the system to access memory locations that are no longer valid.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

Affected ProductsAI

See vendor advisory for affected versions.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Same weakness CWE-825 – Expired Pointer Dereference

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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
Container suse/manager/5.0/x86_64/server:5.0.6.7.36.2 Affected
Container suse/multi-linux-manager/5.1/x86_64/server:5.1.1.1.8.10.2 Image server-image Affected
Container suse/sl-micro/6.0/base-os-container:2.1.3-4.14 Container suse/sl-micro/6.1/base-os-container:2.2.1-5.53 Affected
Image SL-Micro-BYOS-EC2 Image SL-Micro-EC2 Image SLE-Micro Image SLE-Micro-BYOS Image SLE-Micro-BYOS-EC2 Image SLE-Micro-EC2 Image SUSE-Multi-Linux-Manager-Proxy-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Server-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Server-EC2-llc Image SUSE-Multi-Linux-Manager-Server-EC2-ltd Affected
Image SL-Micro Image SL-Micro-Azure Image SL-Micro-BYOS-Azure Image SL-Micro-BYOS-GCE Image SL-Micro-Base Image SL-Micro-Base-RT Image SL-Micro-Base-RT-SelfInstall Image SL-Micro-Base-RT-encrypted Image SL-Micro-Base-SelfInstall Image SL-Micro-Base-encrypted Image SL-Micro-Base-qcow Image SL-Micro-Default Image SL-Micro-Default-SelfInstall Image SL-Micro-Default-encrypted Image SL-Micro-Default-qcow Image SLE-Micro-Azure Image SLE-Micro-BYOS-Azure Image SLE-Micro-BYOS-GCE Image SLE-Micro-GCE Image SUSE-Multi-Linux-Manager-Proxy-BYOS-Azure Image SUSE-Multi-Linux-Manager-Proxy-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-Azure-llc Image SUSE-Multi-Linux-Manager-Server-Azure-ltd Image SUSE-Multi-Linux-Manager-Server-BYOS-Azure Image SUSE-Multi-Linux-Manager-Server-BYOS-GCE Affected

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CVE-2025-54770 vulnerability details – vuln.today
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