A denial of service vulnerability exists in Skype for Business, aka "Microsoft Skype for…
Priority LOW 35Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
A denial of service vulnerability exists in Skype for Business, aka "Microsoft Skype for Business Denial of Service Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Lync, Skype.
Why it matters now
EPSS 0.0546 92nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Skype | Business 2016 (32-bit); Business 2016 (64-bit); Business 2016 Basic (32-bit); Business 2016 Basic (64-bit) | — | No fix listed | CNA |
| Microsoft | Microsoft Office | 2019 for 32-bit editions; 2019 for 64-bit editions | — | No fix listed | CNA |
| Microsoft | Office | 365 ProPlus for 32-bit Systems; 365 ProPlus for 64-bit Systems | — | No fix listed | CNA |
| Microsoft | Microsoft Lync | 2013 Service Pack 1 (32-bit); 2013 Service Pack 1 (64-bit); Basic 2013 Service Pack 1 (32-bit); Basic 2013 Service Pack 1 (64-bit) | — | No fix listed | CNA |
- Skype VendorMicrosoft Affected Business 2016 (32-bit); Business 2016 (64-bit); Business 2016 Basic (32-bit); Business 2016 Basic (64-bit) Fixed in — No fix listed CNA
- Microsoft Office VendorMicrosoft Affected 2019 for 32-bit editions; 2019 for 64-bit editions Fixed in — No fix listed CNA
- Office VendorMicrosoft Affected 365 ProPlus for 32-bit Systems; 365 ProPlus for 64-bit Systems Fixed in — No fix listed CNA
- Microsoft Lync VendorMicrosoft Affected 2013 Service Pack 1 (32-bit); 2013 Service Pack 1 (64-bit); Basic 2013 Service Pack 1 (32-bit); Basic 2013 Service Pack 1 (64-bit) Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:lync:2013:sp1:*:*:*:*:*:* | 2013 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:lync_basic:2013:sp1:*:*:*:*:*:* | 2013 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:* | 2019 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:office_365_proplus:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:skype_for_business:2016:*:*:*:*:*:*:* | 2016 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:skype_for_business_basic:2016:*:*:*:*:*:*:* | 2016 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:lync:2013:sp1:*:*:*:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:lync_basic:2013:sp1:*:*:*:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:* Versions 2019 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:office_365_proplus:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:skype_for_business:2016:*:*:*:*:*:*:* Versions 2016 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:skype_for_business_basic:2016:*:*:*:*:*:*:* Versions 2016 Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-8546
- 2026-10-03 Alias added: GHSA-jwxg-487g-c8pg
More Microsoft Lync vulnerabilities
- TI-2015-01495 The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1… KEVCVSS 3.1HIGH 7.8
- TI-2013-03410 GDI+ in Microsoft Windows Vista SP2 and Server 2008 SP2; Office 2003 SP3, 2007 SP3, and… KEVCVSS 3.1HIGH 7.8
- TI-2015-02157 Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows… CVSS 2.0HIGH 9.3
- TI-2016-06177 The Graphics component in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2… CVSS 3.0CRITICAL 9.8
- TI-2016-00122 The font library in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1… CVSS 3.0HIGH 8.8
- TI-2015-02207 Buffer overflow in the Adobe Type Manager Library in Microsoft Windows Vista SP2, Windows… CVSS 2.0HIGH 9.3
Sources
- CVE-2018-8546 · CVE Program
- CVE-2018-8546 · NVD
- FIRST EPSS
- GHSA-jwxg-487g-c8pg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences