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CVE-2026-58530

Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an unauthorized attacker to execute code locally.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4fa119ac4fec9891ac3938980d6a01ba1266ff3d51464b04878de6427f3c30cf
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 14 assertions

{"platforms":["x64-based Systems"],"product":"Windows Server 2019","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.9020","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/9

{"platforms":["x64-based Systems"],"product":"Windows Server 2016","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.9339","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/7

{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 Version 25H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26200.8875","status":"affected","version":"10.0.26200.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/5

{"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"product":"Windows 10 Version 22H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19045.7548","status":"affected","version":"10.0.19045.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/3

{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1809","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.9020","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/1

{"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"product":"Windows 10 Version 21H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19044.7548","status":"affected","version":"10.0.19044.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/2

{"platforms":["x64-based Systems"],"product":"Windows Server 2022","vendor":"Microsoft","versions":[{"lessThan":"10.0.20348.5386","status":"affected","version":"10.0.20348.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/11

{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1607","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.9339","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/0

{"platforms":["x64-based Systems"],"product":"Windows Server 2019 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.9020","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/10

{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 Version 24H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.8875","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/4

{"platforms":["x64-based Systems"],"product":"Windows Server 2016 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.9339","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/8

{"platforms":["x64-based Systems"],"product":"Windows Server 2025 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.33158","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/13

{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 version 26H1","vendor":"Microsoft","versions":[{"lessThan":"10.0.28000.2525","status":"affected","version":"10.0.28000.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/6

{"platforms":["x64-based Systems"],"product":"Windows Server 2025","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.33158","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/12

Affected products and versions

14 source assertions
{"platforms":["x64-based Systems"],"product":"Windows Server 2019","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.9020","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/9
{"platforms":["x64-based Systems"],"product":"Windows Server 2016","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.9339","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/7
{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 Version 25H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26200.8875","status":"affected","version":"10.0.26200.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/5
{"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"product":"Windows 10 Version 22H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19045.7548","status":"affected","version":"10.0.19045.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/3
{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1809","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.9020","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/1
{"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"product":"Windows 10 Version 21H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19044.7548","status":"affected","version":"10.0.19044.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/2
{"platforms":["x64-based Systems"],"product":"Windows Server 2022","vendor":"Microsoft","versions":[{"lessThan":"10.0.20348.5386","status":"affected","version":"10.0.20348.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/11
{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1607","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.9339","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/0
{"platforms":["x64-based Systems"],"product":"Windows Server 2019 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.9020","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/10
{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 Version 24H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.8875","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/4
{"platforms":["x64-based Systems"],"product":"Windows Server 2016 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.9339","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/8
{"platforms":["x64-based Systems"],"product":"Windows Server 2025 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.33158","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/13
{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 version 26H1","vendor":"Microsoft","versions":[{"lessThan":"10.0.28000.2525","status":"affected","version":"10.0.28000.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/6
{"platforms":["x64-based Systems"],"product":"Windows Server 2025","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.33158","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/affected/12

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en-US","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"Windows Resilient File System (ReFS) Remote Code Execution Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58530"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0da4ff6f792ce0bd5733ab33271fa423fdc36144bc9241f73509effdf063571a · sha256:9d6d9c75f93751b9… · /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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