Buffer overflow in Microsoft Office Online Server
CVE-2017-8743
A remote code execution vulnerability exists in Microsoft PowerPoint 2016, Microsoft SharePoint Enterprise Server 2016, and Office Online Server when they fail to properly handle objects in memory, aka "PowerPoint Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8742.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.221 (97.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.221 · newest: 0.221 · change: 0.000
Affected products
- Microsoft Office Online Server
- Microsoft Powerpoint — versions 2016
- Microsoft Sharepoint Server — versions 2016
- Microsoft Corporation Office — versions Microsoft PowerPoint 2016, Microsoft SharePoint Enterprise Server 2016, and Office Online Server
Weakness classification (CWE)
References
- www.securityfocus.com/bid/100746 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1039323 (VDB Entry, Third Party Advisory, vdb-entry)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8743 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-8743?
- CVE-2017-8743 is a high-severity vulnerability in Microsoft Office Online Server, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2017-09-13.
- How severe is CVE-2017-8743?
- High severity. CVSS v3 base score is 7.8 out of 10.