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CVE-2026-54990

Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c22c86483472b0d608a85e15abfb638fc15ddfe2ba62bef97061a0237e7a5ae8
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 5 assertions

{"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:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /containers/cna/affected/3

{"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:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /containers/cna/affected/0

{"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:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /containers/cna/affected/4

{"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:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /containers/cna/affected/1

{"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:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /containers/cna/affected/2

Affected products and versions

5 source assertions
{"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:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /containers/cna/affected/3
{"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:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /containers/cna/affected/0
{"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:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /containers/cna/affected/4
{"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:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /containers/cna/affected/1
{"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:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /containers/cna/affected/2

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/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:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /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:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"Remote Desktop Client Remote Code Execution Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54990"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ab129bc30eb792bef99cc80864bb0e271837c2514f926ac73fcc827cb4902a22 · sha256:3f936269fe884af1… · /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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