CVE-2025-61663

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Source
https://cve.org/CVERecord?id=CVE-2025-61663
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-61663.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-61663
Downstream
Related
Published
2025-11-18T18:20:52.865Z
Modified
2026-07-15T01:49:15.589546750Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Summary
Grub2: missing unregister call for normal commands may lead to use-after-free
Details

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 An attacker who can execute this command can force the system to access memory locations that are no longer valid.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

Database specific 
{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-825"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/61xxx/CVE-2025-61663.json"
}
References

Affected packages

Git / https.git.savannah.gnu.org/git/grub.git/

Affected ranges

Type
GIT
Repo
https://https.git.savannah.gnu.org/git/grub.git/
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
d38d6a1a9b79427848976f53d474392cd29c2a71
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.14"
        }
    ]
}

Affected versions

1.*
1.98
1.99
2.*
2.00
2.02
2.02-beta3
2.02-rc1
2.02-rc2
grub-2.*
grub-2.02
grub-2.02-beta1
grub-2.02-beta2
grub-2.02-beta3
grub-2.02-rc1
grub-2.02-rc2
grub-2.04
grub-2.04-rc1
grub-2.06
grub-2.06-rc1
grub-2.06-rc1a
grub-2.12
grub-2.12-rc1
grub-2.14
grub-2.14-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-61663.json"