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CVE-2026-45641

Access of resource using incompatible type ('type confusion') in Windows Hyper-V allows an unauthorized attacker to execute code locally.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:88a579e0a333cd59bc997b09d611ebe54f5f7145adaa2ad63c366ff8ed6b20c5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 9 assertions

{"platforms":["x64-based Systems"],"product":"Windows 11 Version 24H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.8655","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/3

{"platforms":["x64-based Systems"],"product":"Windows Server 2025 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.32995","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/8

{"platforms":["x64-based Systems"],"product":"Windows 11 version 26H1","vendor":"Microsoft","versions":[{"lessThan":"10.0.28000.2269","status":"affected","version":"10.0.28000.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/5

{"platforms":["x64-based Systems"],"product":"Windows Server 2025","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.32995","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/7

{"platforms":["x64-based Systems"],"product":"Windows Server 2022","vendor":"Microsoft","versions":[{"lessThan":"10.0.20348.5256","status":"affected","version":"10.0.20348.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/6

{"platforms":["x64-based Systems"],"product":"Windows 11 Version 25H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26200.8655","status":"affected","version":"10.0.26200.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/4

{"platforms":["x64-based Systems"],"product":"Windows 10 Version 22H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19045.7417","status":"affected","version":"10.0.19045.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/1

{"platforms":["x64-based Systems"],"product":"Windows 11 Version 23H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.22631.7219","status":"affected","version":"10.0.22631.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/2

{"platforms":["x64-based Systems"],"product":"Windows 10 Version 21H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19044.7417","status":"affected","version":"10.0.19044.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/0

Affected products and versions

9 source assertions
{"platforms":["x64-based Systems"],"product":"Windows 11 Version 24H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.8655","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/3
{"platforms":["x64-based Systems"],"product":"Windows Server 2025 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.32995","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/8
{"platforms":["x64-based Systems"],"product":"Windows 11 version 26H1","vendor":"Microsoft","versions":[{"lessThan":"10.0.28000.2269","status":"affected","version":"10.0.28000.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/5
{"platforms":["x64-based Systems"],"product":"Windows Server 2025","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.32995","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/7
{"platforms":["x64-based Systems"],"product":"Windows Server 2022","vendor":"Microsoft","versions":[{"lessThan":"10.0.20348.5256","status":"affected","version":"10.0.20348.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/6
{"platforms":["x64-based Systems"],"product":"Windows 11 Version 25H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26200.8655","status":"affected","version":"10.0.26200.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/4
{"platforms":["x64-based Systems"],"product":"Windows 10 Version 22H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19045.7417","status":"affected","version":"10.0.19045.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/1
{"platforms":["x64-based Systems"],"product":"Windows 11 Version 23H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.22631.7219","status":"affected","version":"10.0.22631.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/2
{"platforms":["x64-based Systems"],"product":"Windows 10 Version 21H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19044.7417","status":"affected","version":"10.0.19044.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.4,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-843","description":"CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')","lang":"en-US","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"Windows Hyper-V Remote Code Execution Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45641"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2fb36285c4c918095d232ef29a62e2d2b5d424d8587c296467f15c9892c34da8 · sha256:bd076895ee360bee… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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