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CVE-2026-21519

Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c982d0bbbe92ef949b8e3ad791312c5233830df49cd76d908b37c348d82da743
Known exploited
CISA KEV
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 18 assertions

{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1607","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.8868","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/0

{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1809","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8389","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/1

{"platforms":["x64-based Systems"],"product":"Windows Server 2016 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.8868","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/11

{"platforms":["x64-based Systems"],"product":"Windows Server 2016","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.8868","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/10

{"platforms":["x64-based Systems"],"product":"Windows 11 Version 23H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.22631.6649","status":"affected","version":"10.0.22631.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/5

{"product":"Windows 11 Version 26H1","vendor":"Microsoft","versions":[{"lessThan":"10.0.28000.1575","status":"affected","version":"10.0.28000.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/9

{"platforms":["ARM64-based Systems"],"product":"Windows 11 version 26H1","vendor":"Microsoft","versions":[{"lessThan":"10.0.28000.1575","status":"affected","version":"10.0.28000.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/8

{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 Version 24H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.7840","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/6

{"platforms":["x64-based Systems"],"product":"Windows Server 2022, 23H2 Edition (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.25398.2149","status":"affected","version":"10.0.25398.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/15

{"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"product":"Windows 10 Version 22H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19045.6937","status":"affected","version":"10.0.19045.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/3

{"platforms":["ARM64-based Systems"],"product":"Windows 11 version 22H3","vendor":"Microsoft","versions":[{"lessThan":"10.0.22631.6649","status":"affected","version":"10.0.22631.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/4

{"platforms":["x64-based Systems"],"product":"Windows Server 2025 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.32370","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/17

{"platforms":["x64-based Systems"],"product":"Windows Server 2025","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.32370","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/16

{"platforms":["x64-based Systems"],"product":"Windows Server 2022","vendor":"Microsoft","versions":[{"lessThan":"10.0.20348.4773","status":"affected","version":"10.0.20348.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/14

{"product":"Windows 11 Version 25H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26200.7840","status":"affected","version":"10.0.26200.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/7

{"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"product":"Windows 10 Version 21H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19044.6937","status":"affected","version":"10.0.19044.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/2

{"platforms":["x64-based Systems"],"product":"Windows Server 2019","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8389","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/12

{"platforms":["x64-based Systems"],"product":"Windows Server 2019 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8389","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/13

Affected products and versions

18 source assertions
{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1607","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.8868","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/0
{"platforms":["32-bit Systems","x64-based Systems"],"product":"Windows 10 Version 1809","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8389","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/1
{"platforms":["x64-based Systems"],"product":"Windows Server 2016 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.8868","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/11
{"platforms":["x64-based Systems"],"product":"Windows Server 2016","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.8868","status":"affected","version":"10.0.14393.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/10
{"platforms":["x64-based Systems"],"product":"Windows 11 Version 23H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.22631.6649","status":"affected","version":"10.0.22631.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/5
{"product":"Windows 11 Version 26H1","vendor":"Microsoft","versions":[{"lessThan":"10.0.28000.1575","status":"affected","version":"10.0.28000.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/9
{"platforms":["ARM64-based Systems"],"product":"Windows 11 version 26H1","vendor":"Microsoft","versions":[{"lessThan":"10.0.28000.1575","status":"affected","version":"10.0.28000.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/8
{"platforms":["ARM64-based Systems","x64-based Systems"],"product":"Windows 11 Version 24H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.7840","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/6
{"platforms":["x64-based Systems"],"product":"Windows Server 2022, 23H2 Edition (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.25398.2149","status":"affected","version":"10.0.25398.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/15
{"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"product":"Windows 10 Version 22H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19045.6937","status":"affected","version":"10.0.19045.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/3
{"platforms":["ARM64-based Systems"],"product":"Windows 11 version 22H3","vendor":"Microsoft","versions":[{"lessThan":"10.0.22631.6649","status":"affected","version":"10.0.22631.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/4
{"platforms":["x64-based Systems"],"product":"Windows Server 2025 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.32370","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/17
{"platforms":["x64-based Systems"],"product":"Windows Server 2025","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.32370","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/16
{"platforms":["x64-based Systems"],"product":"Windows Server 2022","vendor":"Microsoft","versions":[{"lessThan":"10.0.20348.4773","status":"affected","version":"10.0.20348.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/14
{"product":"Windows 11 Version 25H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.26200.7840","status":"affected","version":"10.0.26200.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/7
{"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"product":"Windows 10 Version 21H2","vendor":"Microsoft","versions":[{"lessThan":"10.0.19044.6937","status":"affected","version":"10.0.19044.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/2
{"platforms":["x64-based Systems"],"product":"Windows Server 2019","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8389","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/12
{"platforms":["x64-based Systems"],"product":"Windows Server 2019 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.8389","status":"affected","version":"10.0.17763.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/affected/13

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/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:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /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:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/problemTypes/0/descriptions/0

Known exploitation assertions

2 source assertions
{"cwes":["CWE-843"],"dateAdded":"2026-02-10","dueDate":"2026-03-03","knownRansomwareCampaignUse":"Unknown","notes":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21519 ; https://nvd.nist.gov/vuln/detail/CVE-2026-21519","product":"Windows","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","shortDescription":"Microsoft Desktop Windows Manager contains a type confusion vulnerability that could allow an authorized attacker to elevate privileges loc…
  • cisa_kev_jsonknown_exploited
    urn:baitaphish:normalized-source-record:v2:090736dd4994242bba72cebfc2a4e287a26f3fa9231827728e0c9910012140c2 · sha256:635dff916c4092c0… · /vulnerabilities/151
    Open source location →
{"cwes":["CWE-843"],"dateAdded":"2026-02-10","dueDate":"2026-03-03","knownRansomwareCampaignUse":"Unknown","notes":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21519 ; https://nvd.nist.gov/vuln/detail/CVE-2026-21519","product":"Windows","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","shortDescription":"Microsoft Desktop Windows Manager contains a type confusion vulnerability that could allow an authorized attacker to elevate privileges loc…
  • cisa_kev_jsonknown_exploited
    urn:baitaphish:normalized-source-record:v2:4326580e6faddd495f59fd4c7c76b7cf8cdd925751535ca149e95b0829b037d2 · sha256:16acee8334e59e44… · /vulnerabilities/148
    Open source location →

Source references

2 source assertions
{"name":"Desktop Window Manager Elevation of Privilege Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21519"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/cna/references/0
{"tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21519"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:44643805f188ec8b731e34a82691a0239a1e4335d16cc4c81f182fd8439a8188 · sha256:e857fdd132d6aec6… · /containers/adp/0/references/0

Attribution and limitations

  • CISA Known Exploited Vulnerabilities JSON: CISA named for provenance; do not use CISA/DHS marks or imply endorsement Source →
  • 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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