Vulnerability-Lookup

alsa-2026:18465

Vulnerability from osv_almalinux

Published

2026-05-19 00:00

Modified

2026-05-26 12:33

Summary

Important: edk2 security update

Details

EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.

Security Fix(es):

edk2: EDK2: Improper Input Validation allows arbitrary command execution (CVE-2025-2296)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2026:18465	ADVISORY
	https://access.redhat.com/security/cve/CVE-2025-2296	REPORT
	https://bugzilla.redhat.com/2420637	REPORT
	https://errata.almalinux.org/10/ALSA-2026-18465.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "edk2-aarch64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20251114-5.el10_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "edk2-ovmf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20251114-5.el10_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "edk2-tools"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20251114-5.el10_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "edk2-tools-doc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20251114-5.el10_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.   \n\nSecurity Fix(es):  \n\n  * edk2: EDK2: Improper Input Validation allows arbitrary command execution (CVE-2025-2296)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  \n\nAdditional Changes:  \n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.\n",
  "id": "ALSA-2026:18465",
  "modified": "2026-05-26T12:33:30Z",
  "published": "2026-05-19T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:18465"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-2296"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2420637"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/10/ALSA-2026-18465.html"
    }
  ],
  "related": [
    "CVE-2025-2296"
  ],
  "summary": "Important: edk2 security update"
}

CVE-2025-2296 (GCVE-0-2025-2296)

Vulnerability from cvelistv5 – Published: 2025-12-09 15:00 – Updated: 2025-12-09 15:11

Title

Un-verified kernel bypass Secure Boot mechanism in direct boot mode

Summary

EDK2 contains a vulnerability in BIOS where an attacker may cause “ Improper Input Validation” by local access. Successful exploitation of this vulnerability could alter control flow in unexpected ways, potentially allowing arbitrary command execution and impacting Confidentiality, Integrity, and Availability.

Severity

8.4 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-09 15:11 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

TianoCore mitre root

References

1 reference

URL	Tags
https://github.com/tianocore/edk2/security/adviso…

Impacted products

1 product

Vendor	Product	Version
TianoCore	EDK2	Affected: 0 , < edk2-stable202502 (Custom)

Date Public

2025-12-09 15:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-2296",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-09T15:11:03.675222Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "providerMetadata": {
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "packageName": "OvmfPkg",
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          "vendor": "TianoCore",
          "versions": [
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              "version": "0",
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            }
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        }
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          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "EDK2 contains a vulnerability in BIOS where an attacker may cause \u201c Improper Input Validation\u201d by local access. Successful exploitation of this vulnerability could alter control flow in unexpected ways, potentially allowing arbitrary command execution and impacting Confidentiality, Integrity, and Availability."
            }
          ],
          "value": "EDK2 contains a vulnerability in BIOS where an attacker may cause \u201c Improper Input Validation\u201d by local access. Successful exploitation of this vulnerability could alter control flow in unexpected ways, potentially allowing arbitrary command execution and impacting Confidentiality, Integrity, and Availability."
        }
      ],
      "metrics": [
        {
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            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "LOW",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "HIGH",
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            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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      "references": [
        {
          "url": "https://github.com/tianocore/edk2/security/advisories/GHSA-6pp6-cm5h-86g5"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Un-verified kernel bypass Secure Boot mechanism in direct boot mode",
      "x_generator": {
        "engine": "Vulnogram 0.5.0"
      }
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  "cveMetadata": {
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    "datePublished": "2025-12-09T15:00:48.437Z",
    "dateReserved": "2025-03-13T18:56:58.225Z",
    "dateUpdated": "2025-12-09T15:11:26.289Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.