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CVE-2026-20818

Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose information locally.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e629e896c8343c75d9eb7d291d46900285eb462c0a83df534351d58877f8f3f9
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 8 assertions

{"platforms":["x64-based Systems"],"product":"Windows Server 2025","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.32230","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/6

{"platforms":["x64-based Systems"],"product":"Windows Server 2019 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8276","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/3

{"platforms":["x64-based Systems"],"product":"Windows Server 2025 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.32230","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/7

{"platforms":["x64-based Systems"],"product":"Windows Server 2022, 23H2 Edition (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.25398.2092","status":"affected","version":"10.0.25398.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/5

{"platforms":["x64-based Systems"],"product":"Windows Server 2019","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8276","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/2

{"platforms":["x64-based Systems"],"product":"Windows Server 2016 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.8783","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/1

{"platforms":["x64-based Systems"],"product":"Windows Server 2022","vendor":"Microsoft","versions":[{"lessThan":"10.0.20348.4648","status":"affected","version":"10.0.20348.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/4

{"platforms":["x64-based Systems"],"product":"Windows Server 2016","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.8783","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/0

Affected products and versions

8 source assertions
{"platforms":["x64-based Systems"],"product":"Windows Server 2025","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.32230","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/6
{"platforms":["x64-based Systems"],"product":"Windows Server 2019 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8276","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/3
{"platforms":["x64-based Systems"],"product":"Windows Server 2025 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.32230","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/7
{"platforms":["x64-based Systems"],"product":"Windows Server 2022, 23H2 Edition (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.25398.2092","status":"affected","version":"10.0.25398.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/5
{"platforms":["x64-based Systems"],"product":"Windows Server 2019","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8276","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/2
{"platforms":["x64-based Systems"],"product":"Windows Server 2016 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.8783","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/1
{"platforms":["x64-based Systems"],"product":"Windows Server 2022","vendor":"Microsoft","versions":[{"lessThan":"10.0.20348.4648","status":"affected","version":"10.0.20348.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/4
{"platforms":["x64-based Systems"],"product":"Windows Server 2016","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.8783","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":6.2,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-532","description":"CWE-532: Insertion of Sensitive Information into Log File","lang":"en-US","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"Windows Kernel Information Disclosure Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20818"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:338a30517574fef07e9a7dcefaede3d045fc21ec52b966e1761056dd72e9640e · sha256:a8b7fb66ec203f91… · /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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