CVE-2020-1150

Code execution via improper object handling

Published May 21, 2020 · Updated Aug 19, 2026

Memory corruption in Windows Media Foundation on Windows 7 and Server 2008 R2 SP1 allows attackers to execute code via crafted content. Microsoft has disclosed only that Media Foundation improperly handles objects in memory; the specific parser and overwrite operation are not public. Exploitation requires a user to open a crafted document or visit a malicious webpage, after which code runs with the user's rights.

CVSS severity7.8
High
EPSS probability3.25%
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 Windows Media Foundation on Windows 7 and Server 2008 R2 SP1 allows attackers to execute code via crafted content. Microsoft has disclosed only that Media Foundation improperly handles objects in memory; the specific parser and overwrite operation are not public. Exploitation requires a user to open a crafted document or visit a malicious webpage, after which code runs with the user's rights.

The record

CVE
CVE-2020-1150
Published
May 21, 2020
Updated
Aug 19, 2026
Vendor
Microsoft
Product
Windows 7
Classifications
CWE-787, T1204.002, T1204.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 21, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2026Record 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=6.1.0 <publication

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 7version=6.1.0 <publication
Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <publication
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <publication
Microsoft · Windows 7 Service Pack 1version=6.1.0 <publication

Published CVSS scores

6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1204.002User Execution: Malicious File
T1204.001User Execution: Malicious Link

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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