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CVE-2026-68807

7.8 high SSVC exploitation: none Analyzed
NVD · CVE.org

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 4

  1. Cpes+13 CPE criteria (now 13)NVD modified 2026-10-28 20:18
  2. StatusPublished → AnalyzedNVD modified 2026-10-28 20:18
  3. CVSS7.8 (v3.1, CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C) → 7.8 (v3.1, CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)NVD modified 2026-10-28 20:18
  4. First seenCVSS 7.8 · microsoftNVD modified 2026-10-21 20:52

Affected (CPE criteria) 13

  • cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
  • cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*
  • cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x64:*
  • cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x86:*
  • cpe:2.3:a:microsoft:microsoft_365:-:*:*:*:*:macos:*:*
  • cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x64:*
  • cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x86:*
  • cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x64:*
  • cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x86:*
  • cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:macos:-:*
  • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:*
  • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:*
  • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:macos:-:*

References 1