Vulnerability-Lookup

OESA-2025-2795 (CVE-2025-61664)

Vulnerability from osv_openeuler – Published: 2025-12-12 11:09 – Updated: 2026-08-06 11:09 – Source website

Summary

grub2 security update

Details

GNU GRUB is a Multiboot boot loader. It was derived from GRUB, the GRand Unified Bootloader, which was originally designed and implemented by Erich Stefan Boleyn.

Security Fix(es):

A vulnerability in the GRUB2 bootloader has been identified in the normal module. This flaw, a memory Use After Free issue, occurs because the normal_exit command is not properly unregistered when its related module is unloaded. An attacker can exploit this condition by invoking the command after the module has been removed, causing the system to improperly access a previously freed memory location. This leads to a system crash or possible impacts in data confidentiality and integrity.(CVE-2025-61664)

Severity

4.9 (Medium)


                    
                      CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-61664	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "grub2-debuginfo-2.04-43.oe2003sp4.aarch64.rpm",
          "grub2-debugsource-2.04-43.oe2003sp4.aarch64.rpm",
          "grub2-efi-aa64-2.04-43.oe2003sp4.aarch64.rpm",
          "grub2-efi-aa64-cdboot-2.04-43.oe2003sp4.aarch64.rpm",
          "grub2-tools-2.04-43.oe2003sp4.aarch64.rpm",
          "grub2-tools-extra-2.04-43.oe2003sp4.aarch64.rpm",
          "grub2-tools-minimal-2.04-43.oe2003sp4.aarch64.rpm"
        ],
        "noarch": [
          "grub2-common-2.04-43.oe2003sp4.noarch.rpm",
          "grub2-efi-aa64-modules-2.04-43.oe2003sp4.noarch.rpm",
          "grub2-efi-ia32-modules-2.04-43.oe2003sp4.noarch.rpm",
          "grub2-efi-x64-modules-2.04-43.oe2003sp4.noarch.rpm",
          "grub2-help-2.04-43.oe2003sp4.noarch.rpm",
          "grub2-pc-modules-2.04-43.oe2003sp4.noarch.rpm"
        ],
        "src": [
          "grub2-2.04-43.oe2003sp4.src.rpm"
        ],
        "x86_64": [
          "grub2-debuginfo-2.04-43.oe2003sp4.x86_64.rpm",
          "grub2-debugsource-2.04-43.oe2003sp4.x86_64.rpm",
          "grub2-efi-ia32-2.04-43.oe2003sp4.x86_64.rpm",
          "grub2-efi-ia32-cdboot-2.04-43.oe2003sp4.x86_64.rpm",
          "grub2-efi-x64-2.04-43.oe2003sp4.x86_64.rpm",
          "grub2-efi-x64-cdboot-2.04-43.oe2003sp4.x86_64.rpm",
          "grub2-pc-2.04-43.oe2003sp4.x86_64.rpm",
          "grub2-tools-2.04-43.oe2003sp4.x86_64.rpm",
          "grub2-tools-efi-2.04-43.oe2003sp4.x86_64.rpm",
          "grub2-tools-extra-2.04-43.oe2003sp4.x86_64.rpm",
          "grub2-tools-minimal-2.04-43.oe2003sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP4",
        "name": "grub2",
        "purl": "pkg:rpm/openEuler/grub2\u0026distro=openEuler-20.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.04-43.oe2003sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "GNU GRUB is a Multiboot boot loader. It was derived from GRUB, the GRand Unified Bootloader, which was originally designed and implemented by Erich Stefan Boleyn.\r\n\r\nSecurity Fix(es):\n\nA vulnerability in the GRUB2 bootloader has been identified in the normal module. This flaw, a memory Use After Free issue, occurs because the normal_exit command is not properly unregistered when its related module is unloaded. An attacker can exploit this condition by invoking the command after the module has been removed, causing the system to improperly access a previously freed memory location. This leads to a system crash or possible impacts in data confidentiality and integrity.(CVE-2025-61664)",
  "id": "OESA-2025-2795",
  "modified": "2026-08-06T11:09:55Z",
  "published": "2025-12-12T11:09:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-2795"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61664"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "grub2 security update",
  "upstream": [
    "CVE-2025-61664"
  ]
}

CVE-2025-61664 (GCVE-0-2025-61664)

Vulnerability from cvelistv5 – Published: 2025-11-18 18:20 – Updated: 2026-09-01 11:54

Title

Grub2: missing unregister call for normal_exit command may lead to use-after-free

Summary

Severity

4.9 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-11-19 14:28 UTC

CWE

CWE-825 - Expired Pointer Dereference

Assigner

redhat redhat root

References

3 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2025-61664	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2414685	issue-trackingx_refsource_REDHAT
https://lists.gnu.org/archive/html/grub-devel/202…

Impacted products

6 products

Vendor	Product	Version
GNU	grub2	Affected: 0 , ≤ 2.14 (semver)
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2025-11-18 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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