FKIE_CVE-2025-61662

Vulnerability from fkie_nvd - Published: 2025-11-18 19:15 - Updated: 2026-06-17 09:50
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A Use-After-Free vulnerability has been discovered in GRUB's gettext module. This flaw stems from a programming error where the gettext command remains registered in memory after its module is unloaded. An attacker can exploit this condition by invoking the orphaned command, causing the application to access a memory location that is no longer valid. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:10097
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:14773
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:15087
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:17596
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:4648
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:4649
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:4652
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:4653
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:4654
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:4760
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:4822
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:4823
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:4830
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:4900
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:4998
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:5074
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:5127
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:5233
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:6492
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:7239
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:7243
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2025-61662Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2414683Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://lists.gnu.org/archive/html/grub-devel/2025-11/msg00155.html
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/11/18/5Mailing List, Patch
Impacted products
Vendor Product Version
gnu grub2 *
To clipboard 

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      "source": "secalert@redhat.com"
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  ],
  "configurations": [
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      "nodes": [
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Use-After-Free vulnerability has been discovered in GRUB\u0027s gettext module. This flaw stems from a programming error where the gettext command remains registered in memory after its module is unloaded. An attacker can exploit this condition by invoking the orphaned command, causing the application to access a memory location that is no longer valid. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded."
    }
  ],
  "id": "CVE-2025-61662",
  "lastModified": "2026-06-17T09:50:44.123",
  "metrics": {
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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
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          "role": "CISA Coordinator",
          "timestamp": "2025-11-18T18:44:47.430638Z",
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    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:5127"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:5233"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:6492"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:7239"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:7243"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://access.redhat.com/security/cve/CVE-2025-61662"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2414683"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://lists.gnu.org/archive/html/grub-devel/2025-11/msg00155.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2025/11/18/5"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.