What is the CVSS score of CVE-2019-0798?

CVE-2019-0798 has a CVSS 3.0 base score of 6.1 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 2.1%.

Is there a patch available for CVE-2019-0798?

Yes, a patch is available for CVE-2019-0798. Update the affected software to the latest version immediately.

Lync Server CVE-2019-0798

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2019-04-09 secure@microsoft.com

XSS Lync Server Skype For Business Server

6.1

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Apr 09, 2019 - 03:29 nvd

MEDIUM 6.1

DescriptionNVD

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'.

AnalysisAI

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'. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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'. Affected products include: Microsoft Lync Server, Microsoft Skype For Business Server.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.