Vulnerability details
CVE-2026-70313
Microsoft 365 Apps for EnterpriseMicrosoft OfficeMicrosoft Office 365 for MacMicrosoft Office LTSCMicrosoft Office LTSC for Mac
Microsoft PowerPoint Remote Code Execution Vulnerability
CVSS 3.1
7.8High
Official description
Improper input validation in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information locally.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (microsoft) | 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 |
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 2019 | 19.0.0 ≤ v < https://aka.ms/OfficeSecurityReleases | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office 365 for Mac | 1.0.0 ≤ v < 16.112.26081010 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1 ≤ v < https://aka.ms/OfficeSecurityReleases | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office LTSC 2024 | 16.0.0 ≤ v < https://aka.ms/OfficeSecurityReleases | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office LTSC for Mac 2021 | 16.0.1 ≤ v < 16.112.26081010 | CVEProject cvelistV5 (CNA) |
| Microsoft | Microsoft Office LTSC for Mac 2024 | 16.0.0 ≤ v < 16.112.26081010 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70313 vendor-advisorypatch
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Details
- Published
- 2026-08-11
- Last updated
- 2026-10-30
- State
- Published
- Assigner (CNA)
- microsoft
Exploit prediction (EPSS)
0.46%
Probability of exploitation in 30 days
40.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-20Improper Input Validation