CVE-2025-54770
mediumpriority · track · 0EPSS 0.002 · 5 %ileDEEURUUSEPSS · scored 2026-10-27
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 An attacker who can execute this command can force the system to access memory locations that are no longer valid.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
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (30)
Products and version ranges known to be affected.
- IBM Power Hardware Management Console V10.3.1050.0-V10.3.1063.2all versionscert_bundDEcpe:/a:ibm:hardware_management_console:v10.3.1050.0_-_v10.3.1063.2
- IBM Power Hardware Management Console V11.1.1110.0-V11.1.1111.5all versionscert_bundDEcpe:/a:ibm:hardware_management_console:v11.1.1110.0_-_v11.1.1111.5
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-2638Grub: Mehrere SchwachstellenDeutsch2025-11-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Grub ausnutzen, um beliebigen Programmcode auszuführen, und um einen Denial of Service Angriff durchzuführen.
- WID-SEC-W-2026-0778Dell Secure Connect Gateway Policy Manager: Mehrere SchwachstellenDeutsch2026-03-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell Secure Connect Gateway Policy Manager ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (14)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2025/11/18/4cnnvd
- https://access.redhat.com/security/cve/CVE-2025-54770cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2413813cnnvd
- https://lists.gnu.org/archive/html/grub-devel/2025-11/msg00155.htmlcnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54770cnnvd
- https://vigilance.fr/vulnerability/GNU-GRUB-multiple-vulnerabilities-dated-20-11-2025-48819cnnvd
- https://www.gnu.org/software/grub/grub-download.htmlPatchcnnvd
- https://access.redhat.com/security/cve/CVE-2025-54770enisa_euvd
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