4.9

CVE-2025-61663

A vulnerability has been identified in the GRUB2 bootloader's normal command that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the normal command is not properly unregistered when the module is unloaded. An attacker who can execute this command can force the system to access memory locations that are no longer valid.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. Impact on the data integrity and confidentiality is also not discarded.
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Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerGNU
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Produkt grub2
Default Statusunaffected
Version <= 2.14
Version 0
Status affected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 10
Default Statusaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 7
Default Statusaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 8
Default Statusaffected
HerstellerRed Hat
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Produkt Red Hat Enterprise Linux 9
Default Statusaffected
HerstellerRed Hat
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Produkt Red Hat OpenShift Container Platform 4
Default Statusaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.04
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secalert@redhat.com 4.9 1.4 3.4
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE-825 Expired Pointer Dereference

The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.