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CVE-2018-8546
A denial of service vulnerability exists in Skype for Business, aka "Microsoft Skype for Business Denial of Service Vulnerability." This…
- 5.9MediumCVSS base score
- 5.5%Exploitation in 30 daysEPSS · top 7.2% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By microsoft
- 8 months later
· 8 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 5.5% · top 7.2% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.9.
Affected products
- affected Business 2016 (32-bit)
- affected Business 2016 (64-bit)
- affected Business 2016 Basic (32-bit)
- affected Business 2016 Basic (64-bit)
- affected 2019 for 32-bit editions
- affected 2019 for 64-bit editions
- affected 365 ProPlus for 32-bit Systems
- affected 365 ProPlus for 64-bit Systems
- affected 2013 Service Pack 1 (32-bit)
- affected 2013 Service Pack 1 (64-bit)
- affected Basic 2013 Service Pack 1 (32-bit)
- affected Basic 2013 Service Pack 1 (64-bit)
References
3
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8546 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 105802 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1042125 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-20167 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-8546)Record last updated .