MEDIUM
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
Published Nov 14, 2018
5.9
MEDIUMCVSS 3.0
EPSS 5.46%
Description
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.
Affected products
-
- Version 2013 Service Pack 1 (32-bit)StatusaffectedConstraints-
- Version 2013 Service Pack 1 (64-bit)StatusaffectedConstraints-
- Version Basic 2013 Service Pack 1 (32-bit)StatusaffectedConstraints-
- Version Basic 2013 Service Pack 1 (64-bit)StatusaffectedConstraints-
- Version
-
- Version 2019 for 32-bit editionsStatusaffectedConstraints-
- Version 2019 for 64-bit editionsStatusaffectedConstraints-
- Version
-
- Version 365 ProPlus for 32-bit SystemsStatusaffectedConstraints-
- Version 365 ProPlus for 64-bit SystemsStatusaffectedConstraints-
- Version
-
- Version Business 2016 (32-bit)StatusaffectedConstraints-
- Version Business 2016 (64-bit)StatusaffectedConstraints-
- Version Business 2016 Basic (32-bit)StatusaffectedConstraints-
- Version Business 2016 Basic (64-bit)StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Lync | n/a |
| |||||||||||||||
| Microsoft | Microsoft Office | n/a |
| |||||||||||||||
| Microsoft | Office | n/a |
| |||||||||||||||
| Microsoft | Skype | n/a |
|
OR
- 2013
- 2013
- 2019
- n/a
- 2016
- 2016
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
5.9 MEDIUM NVD
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
5.46% 0.05460
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.05460
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (31 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.46% (0.05460) | 92.49th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.46% (0.05460) | 91.69th | v5 (v2026.06.15) |
| May 31, 2026 | 13.48% (0.13480) | 94.33th | v4 (v2025.03.14) |
| Apr 4, 2026 | 17.68% (0.17682) | 95.09th | v4 (v2025.03.14) |
| Mar 8, 2026 | 13.82% (0.13821) | 94.15th | v4 (v2025.03.14) |
| Mar 30, 2025 | 11.13% (0.11131) | 92.84th | v4 (v2025.03.14) |
| Mar 29, 2025 | 22.78% (0.22780) | 93.34th | v4 (v2025.03.14) |
| Mar 19, 2025 | 11.13% (0.11131) | 92.58th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.10% (0.04099) | 87.83th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.45% (0.00452) | 75.98th | v3 (v2023.03.01) |
| May 16, 2024 | 0.38% (0.00382) | 72.89th | v3 (v2023.03.01) |
| Apr 6, 2024 | 0.36% (0.00362) | 71.89th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.45% (0.00453) | 74.45th | v3 (v2023.03.01) |
| Dec 12, 2023 | 0.45% (0.00453) | 72.38th | v3 (v2023.03.01) |
| Nov 7, 2023 | 0.46% (0.00460) | 72.69th | v3 (v2023.03.01) |
| Sep 19, 2023 | 0.48% (0.00476) | 72.81th | v3 (v2023.03.01) |
| Jul 31, 2023 | 0.67% (0.00674) | 77.15th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.95% (0.00954) | 81.11th | v3 (v2023.03.01) |
| Apr 11, 2023 | 1.26% (0.01260) | 83.52th | v3 (v2023.03.01) |
| Mar 27, 2023 | 1.28% (0.01284) | 83.68th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.26% (0.01260) | 83.45th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.42% (0.06416) | 91.03th | v2 (v2022.01.01) |
| Sep 26, 2022 | 5.85% (0.05853) | 90.12th | v2 (v2022.01.01) |
| Aug 20, 2022 | 5.27% (0.05274) | 89.25th | v2 (v2022.01.01) |
| May 10, 2022 | 4.79% (0.04794) | 88.30th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.00% (0.04004) | 84.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.00% (0.04004) | 67.82th | v2 (v2022.01.01) |
| Feb 3, 2022 | 10.69% (0.10686) | 87.85th | v1 |
| Jan 6, 2022 | 10.69% (0.10686) | 87.71th | v1 |
| Sep 1, 2021 | 10.69% (0.10686) | 95.19th | v1 |
| Apr 14, 2021 | 10.69% (0.10686) | 0.00th | v1 |
Weaknesses (0)
No CWE recorded.
References (3)
- http://www.securityfocus.com/bid/105802 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1042125 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8546 x_refsource_CONFIRMPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/105802 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1042125 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8546 | x_refsource_CONFIRMPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Nov 14, 2018
Updated Aug 5, 2024
Reserved Mar 14, 2018
Link CVE-2018-8546
CISA Vulnrichment
Updated n/a