Important CVSS 4.3 EPSS 0.05443 2019-12 archive

Executive Summary

An information disclosure vulnerability exists in Windows Media Player when it fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could potentially read data that was not intended to be disclosed. To exploit this vulnerability, an attacker would have to log on to an affected system and open a specifically crafted file. The update addresses the vulnerability by correcting how Windows Media Player handles objects in memory.

Overview

4.3
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
N/A
MS Exploit Likelihood
Category Information Disclosure
Released Dec 10 2019
Last Updated Dec 10 2019
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.05443 — 0.91887 percentile
NVD CVSS 4.3 MEDIUM — differs from MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 5.0

EPSS Score

0.05443
probability of exploitation in the next 30 days
0.91887 percentile - updated 2026-07-25
View on FIRST.org

Known Exploits

Acknowledgments