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CVE-2026-41100

Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e209286ed6862cb521986f29cae63b07b6d899e348065c0702cd1d4311ab7a7f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 6 assertions

{"product":"Microsoft Excel for Android","vendor":"Microsoft","versions":[{"lessThan":"16.0.19822.20190","status":"affected","version":"16.0.0.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/affected/1

{"product":"Microsoft Word for Android","vendor":"Microsoft","versions":[{"lessThan":"16.0.19822.20190","status":"affected","version":"16.0.0.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/affected/5

{"product":"Microsoft OneNote for Android","vendor":"Microsoft","versions":[{"lessThan":"16.0.19822.20190","status":"affected","version":"16.0.1","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/affected/3

{"product":"Microsoft Loop for Android","vendor":"Microsoft","versions":[{"lessThan":"16.0.19822.20190","status":"affected","version":"1.0.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/affected/2

{"product":"Microsoft PowerPoint for Android","vendor":"Microsoft","versions":[{"lessThan":"16.0.19822.20190","status":"affected","version":"16.0.0.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/affected/4

{"product":"Microsoft 365 Copilot for Android","vendor":"Microsoft","versions":[{"lessThan":"16.0.19822.20190","status":"affected","version":"1.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/affected/0

Affected products and versions

6 source assertions
{"product":"Microsoft Excel for Android","vendor":"Microsoft","versions":[{"lessThan":"16.0.19822.20190","status":"affected","version":"16.0.0.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/affected/1
{"product":"Microsoft Word for Android","vendor":"Microsoft","versions":[{"lessThan":"16.0.19822.20190","status":"affected","version":"16.0.0.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/affected/5
{"product":"Microsoft OneNote for Android","vendor":"Microsoft","versions":[{"lessThan":"16.0.19822.20190","status":"affected","version":"16.0.1","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/affected/3
{"product":"Microsoft Loop for Android","vendor":"Microsoft","versions":[{"lessThan":"16.0.19822.20190","status":"affected","version":"1.0.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/affected/2
{"product":"Microsoft PowerPoint for Android","vendor":"Microsoft","versions":[{"lessThan":"16.0.19822.20190","status":"affected","version":"16.0.0.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/affected/4
{"product":"Microsoft 365 Copilot for Android","vendor":"Microsoft","versions":[{"lessThan":"16.0.19822.20190","status":"affected","version":"1.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":4.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en-US","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"Microsoft 365 Copilot for Android Spoofing Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41100"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5059e89ee278a445ccacdb697fe35efe97b54a8a749ae54b44a5da3b4ac1d56e · sha256:70c78306f2cb2a84… · /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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