Medium severity · published Apr 9, 2019
CVE-2019-0798
A spoofing vulnerability exists when a Lync Server or Skype for Business Server does not properly sanitize a specially crafted request, aka 'Skype for Business and Lync Spoofing…
6.1
CVSS
2.1%
EPSS
No
On KEV
Description
A spoofing vulnerability exists when a Lync Server or Skype for Business Server does not properly sanitize a specially crafted request, aka 'Skype for Business and Lync Spoofing Vulnerability'.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LS
Lync Server · Microsoft
2013 · source: NVD
SF
Skype For Business Server · Microsoft
2015 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-0798
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-0798
Patch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0798
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