CVE-2025-61661

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Source
https://cve.org/CVERecord?id=CVE-2025-61661
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-61661.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-61661
Downstream
Related
Published
2025-11-18T18:20:42.151Z
Modified
2026-07-11T03:54:29.449339249Z
Severity
  • 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
Summary
Grub2: grub2: out-of-bounds write via malicious usb device
Details

A vulnerability has been identified in the GRUB (Grand Unified Bootloader) component. This flaw occurs because the bootloader mishandles string conversion when reading information from a USB device, allowing an attacker to exploit inconsistent length values. A local attacker can connect a maliciously configured USB device during the boot sequence to trigger this issue. A successful exploitation may lead GRUB to crash, leading to a Denial of Service. Data corruption may be also possible, although given the complexity of the exploit the impact is most likely limited.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/61xxx/CVE-2025-61661.json",
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-131"
    ]
}
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-2025-61661.json"