Improper input validation in Microsoft Lync
CVE-2018-8311
A remote code execution vulnerability exists when Skype for Business and Microsoft Lync clients fail to properly sanitize specially crafted content, aka "Remote Code Execution Vulnerability in Skype For Business and Lync." This affects Skype, Microsoft Lync.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.169 (97.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.164 · newest: 0.169 · change: +0.005
Affected products
- Microsoft Lync
- Microsoft Lync — versions 2013 Service Pack 1 (32-bit), 2013 Service Pack 1 (64-bit)
- Microsoft Skype — versions Business 2016 (32-bit), Business 2016 (64-bit)
- Microsoft Skype For Business
Weakness classification (CWE)
References
- www.securityfocus.com/bid/104624 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1041259 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1041260 (VDB Entry, Third Party Advisory, vdb-entry)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8311 (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-8311?
- CVE-2018-8311 is a high-severity vulnerability in Microsoft Lync, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2018-07-11.
- How severe is CVE-2018-8311?
- High severity. CVSS v3 base score is 8.8 out of 10.