CVE-2019-1490

FAUCET Score

CVE-2019-1490 is a medium-severity spoofing vulnerability affecting Microsoft Skype for Business Server. It arises from improper sanitization of specially crafted requests, allowing an authenticated attacker to potentially spoof content. The attack requires user interaction and has low impact on confidentiality and integrity, with no impact on availability. There is no public exploit code, nor is it known to be actively exploited, and it has received minimal community and media attention.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		2019CPE matchmatch criteria	cpe:2.3:a:microsoft:skype_for_business:2019:cumulative_update_2::::::

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

Exploitability Score

2.3

Impact Score

2.7

CvssVersion

3.1

Exploit Intelligence

EPSS Score

1.43%

Probability of exploitation in next 30 days

EPSS Percentile

70.3%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0143 is in the 96th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia nvd_reference

View patch

microsoftpatch availablevia msrc

Product: Skype for Business Server 2019 CU2

View patch

Vendor Advisories (1)

microsoft2019-Dec/CVE-2019-1490Important

Skype for Business Server Spoofing Vulnerability

Dec 10, 2019

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2019-1490

PatchVendor Advisory