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CVE-2026-45466

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:732bde5bfe489484f0f967f9d6842646adda2c3b2b909ef0d95e21b8dd4afad1
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

{"platforms":["32-bit Systems","x64-based Systems"],"product":"Microsoft 365 Apps for Enterprise","vendor":"Microsoft","versions":[{"lessThan":"https://aka.ms/OfficeSecurityReleases","status":"affected","version":"16.0.1","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/affected/0

{"product":"Microsoft Office 365 for Mac","vendor":"Microsoft","versions":[{"lessThan":"16.110.26061317","status":"affected","version":"1.0.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/affected/1

{"platforms":["32-bit Systems","x64-based Systems"],"product":"Microsoft Office LTSC 2021","vendor":"Microsoft","versions":[{"lessThan":"https://aka.ms/OfficeSecurityReleases","status":"affected","version":"16.0.1","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/affected/2

{"platforms":["32-bit Systems","x64-based Systems"],"product":"Microsoft Office LTSC 2024","vendor":"Microsoft","versions":[{"lessThan":"https://aka.ms/OfficeSecurityReleases","status":"affected","version":"16.0.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/affected/3

{"product":"Microsoft Office LTSC for Mac 2024","vendor":"Microsoft","versions":[{"lessThan":"16.110.26061317","status":"affected","version":"16.0.0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/affected/5

{"product":"Microsoft Office LTSC for Mac 2021","vendor":"Microsoft","versions":[{"lessThan":"16.110.26061317","status":"affected","version":"16.0.1","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/affected/4

Affected products and versions

6 source assertions
{"platforms":["32-bit Systems","x64-based Systems"],"product":"Microsoft 365 Apps for Enterprise","vendor":"Microsoft","versions":[{"lessThan":"https://aka.ms/OfficeSecurityReleases","status":"affected","version":"16.0.1","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/affected/0
{"product":"Microsoft Office 365 for Mac","vendor":"Microsoft","versions":[{"lessThan":"16.110.26061317","status":"affected","version":"1.0.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/affected/1
{"platforms":["32-bit Systems","x64-based Systems"],"product":"Microsoft Office LTSC 2021","vendor":"Microsoft","versions":[{"lessThan":"https://aka.ms/OfficeSecurityReleases","status":"affected","version":"16.0.1","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/affected/2
{"platforms":["32-bit Systems","x64-based Systems"],"product":"Microsoft Office LTSC 2024","vendor":"Microsoft","versions":[{"lessThan":"https://aka.ms/OfficeSecurityReleases","status":"affected","version":"16.0.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/affected/3
{"product":"Microsoft Office LTSC for Mac 2024","vendor":"Microsoft","versions":[{"lessThan":"16.110.26061317","status":"affected","version":"16.0.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/affected/5
{"product":"Microsoft Office LTSC for Mac 2021","vendor":"Microsoft","versions":[{"lessThan":"16.110.26061317","status":"affected","version":"16.0.1","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/affected/4

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/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:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /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:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"Microsoft Word Information Disclosure Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45466"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3838b0f538e66324f010c3254e07afd878b1a9b914942c4d6b4d1f6ba72f41c7 · sha256:c2065ae03b0ea752… · /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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