CVE-2018-8311 in the critical feed json
A remote code execution vulnerability exists when Skype for Business and Microsoft Lync clients fail to properly sanitize specially crafted…
published 2018-07-11 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19964
- cvss
- 8.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 16.9%
- EPSS 16.9% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
16.87% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- Microsoft Skype
- Microsoft Microsoft Lync
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2018-8311
vendor-advisory
-
securityfocus.com
/bid/104624
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1041259
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1041260
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-8311
- NVD CVE-2018-8311
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.