XSS in Microsoft Office
CVE-2017-8550
A remote code execution vulnerability exists in Skype for Business when the software fails to sanitize specially crafted content, aka "Skype for Business Remote Code Execution Vulnerability".
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.224 (97.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.323 · newest: 0.224 · change: -0.099
Affected products
- Microsoft Office — versions 2016
- Microsoft Corporation Skype For Business — versions Microsoft Office 2016 Click-to-Run (C2R)
Weakness classification (CWE)
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8550 (Patch, Vendor Advisory)
- www.exploit-db.com/exploits/42316/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.securityfocus.com/bid/98916 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-8550?
- CVE-2017-8550 is a medium-severity vulnerability in Microsoft Office, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2017-06-15.
- How severe is CVE-2017-8550?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2017-8550 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.