High severity · published Jul 11, 2018
CVE-2018-8238
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…
7.8
CVSS
6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.0% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LY
Lync · Microsoft
2013 · source: NVD
SF
Skype For Business · Microsoft
2016 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-8238
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-8238
Third Party Advisory
http://www.securityfocus.com/bid/104619
Patch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8238
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