CVE-2018-8238 json
A security feature bypass vulnerability exists when Skype for Business or Lync do not properly parse UNC path links shared via messages, ak…
published 2018-07-11 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19905
- cvss
- 7.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 6.0%
- EPSS 6.0% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
A security feature bypass vulnerability exists when Skype for Business or Lync do not properly parse UNC path links shared via messages, aka "Skype for Business and Lync Security Feature Bypass Vulnerability." This affects Skype, Microsoft Lync.
Patch / fix
Exploit prediction
5.99% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Affected products
- Microsoft Skype
- Microsoft Microsoft Lync
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2018-8238
patch, vendor-advisory
-
securityfocus.com
/bid/104619
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-8238
- NVD CVE-2018-8238
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