CVE-2020-0950Network attack vector

Code execution via malformed Media Foundation objects

Published Apr 15, 2020 · Updated Aug 4, 2024

Memory corruption in Microsoft Windows Media Foundation allows remote attackers to execute code through crafted documents or webpages. The framework improperly handles attacker-controlled objects in memory; Microsoft has not disclosed a narrower code locus or erroneous operation. Exploitation requires a user to open the crafted document or visit the malicious webpage, after which code runs with that user's rights.

CVSS severity8.8
High
EPSS probability5.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in Microsoft Windows Media Foundation allows remote attackers to execute code through crafted documents or webpages. The framework improperly handles attacker-controlled objects in memory; Microsoft has not disclosed a narrower code locus or erroneous operation. Exploitation requires a user to open the crafted document or visit the malicious webpage, after which code runs with that user's rights.

The record

CVE
CVE-2020-0950
Published
Apr 15, 2020
Updated
Aug 4, 2024
Vendor
Microsoft
Product
Windows 10 Version 1909
Classifications
CWE-787, T1203, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 10 Version 1909version=unspecified
Microsoft · Windows Server, version 1903 (Server Core installation)version=unspecified
Microsoft · Windowsversion=10 for 32-bit Systems; version=10 for x64-based Systems; version=10 Version 1607 for 32-bit Systems; version=10 Version 1607 for x64-based Systems; version=10 Version 1709 for 32-bit Systems; version=10 Version 1709 for ARM64-based Systems; version=10 Version 1709 for x64-based Systems; version=10 Version 1803 for 32-bit Systems; version=10 Version 1803 for ARM64-based Systems; version=10 Version 1803 for x64-based Systems; version=10 Version 1809 for 32-bit Systems; version=10 Version 1809 for ARM64-based Systems; version=10 Version 1809 for x64-based Systems
Microsoft · Windows Serverversion=2016; version=2016 (Core installation); version=2019; version=2019 (Core installation); version=version 1803 (Core Installation)
Microsoft · Windows Server, version 1909 (Server Core installation)version=unspecified
Microsoft · Windows 10 Version 1903version=unspecified

Published CVSS scores

8.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.3NIST National Vulnerability DatabaseAV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1203Exploitation for Client Execution
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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