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CVE-2026-42987

Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:448c7f11f556c5ce6fceb758c47e10cefad5ea970fe16f5a967cb3600f2bdfa9
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 11 assertions

{"platforms":["x64-based Systems"],"product":"Windows Server 2016 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.9234","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/5

{"platforms":["x64-based Systems"],"product":"Windows Server 2012","vendor":"Microsoft","versions":[{"lessThan":"6.2.9200.26132","status":"affected","version":"6.2.9200.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/0

{"platforms":["x64-based Systems"],"product":"Windows Server 2019","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8880","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/6

{"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:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/8

{"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:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/9

{"platforms":["x64-based Systems"],"product":"Windows Server 2012 R2 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"6.3.9600.23228","status":"affected","version":"6.3.9600.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/3

{"platforms":["x64-based Systems"],"product":"Windows Server 2012 R2","vendor":"Microsoft","versions":[{"lessThan":"6.3.9600.23228","status":"affected","version":"6.3.9600.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/2

{"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:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/10

{"platforms":["x64-based Systems"],"product":"Windows Server 2019 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8880","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/7

{"platforms":["x64-based Systems"],"product":"Windows Server 2016","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.9234","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/4

{"platforms":["x64-based Systems"],"product":"Windows Server 2012 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"6.2.9200.26132","status":"affected","version":"6.2.9200.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/1

Affected products and versions

11 source assertions
{"platforms":["x64-based Systems"],"product":"Windows Server 2016 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.9234","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/5
{"platforms":["x64-based Systems"],"product":"Windows Server 2012","vendor":"Microsoft","versions":[{"lessThan":"6.2.9200.26132","status":"affected","version":"6.2.9200.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/0
{"platforms":["x64-based Systems"],"product":"Windows Server 2019","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8880","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/6
{"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:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/8
{"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:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/9
{"platforms":["x64-based Systems"],"product":"Windows Server 2012 R2 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"6.3.9600.23228","status":"affected","version":"6.3.9600.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/3
{"platforms":["x64-based Systems"],"product":"Windows Server 2012 R2","vendor":"Microsoft","versions":[{"lessThan":"6.3.9600.23228","status":"affected","version":"6.3.9600.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/2
{"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:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/10
{"platforms":["x64-based Systems"],"product":"Windows Server 2019 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8880","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/7
{"platforms":["x64-based Systems"],"product":"Windows Server 2016","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.9234","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/4
{"platforms":["x64-based Systems"],"product":"Windows Server 2012 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"6.2.9200.26132","status":"affected","version":"6.2.9200.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/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:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-416","description":"CWE-416: Use After Free","lang":"en-US","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"Windows Deployment Services (WDS) Remote Code Execution","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42987"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c0f389c93df0d71729d8ddb56703c56e5d8433c844d4177117d087d66f16b157 · sha256:a2812bf2976f8d14… · /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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