Vulnerability details
CVE-2026-97749
Microsoft 365 Apps for EnterpriseMicrosoft Office LTSC
Microsoft Office Outlook Remote Code Execution Vulnerability
CVSS 3.1
9.8Critical
Official description
Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (microsoft) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise | 16.0.1 ≤ v < https://aka.ms/OfficeSecurityReleases | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1 ≤ v < 16.0.14334.20974 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office LTSC 2024 | 16.0.0 ≤ v < 16.0.17932.21056 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97749 vendor-advisorypatch
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Details
- Published
- 2026-10-13
- Last updated
- 2026-10-31
- State
- Published
- Assigner (CNA)
- microsoft
Exploit prediction (EPSS)
1.19%
Probability of exploitation in 30 days
68.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-415Double Free