SARA / Free Tools / CVE / CVE-2020-1238

CVE-2020-1238 — A memory corruption vulnerability exists when Windows Media Foundation improperl

A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory, aka 'Media Foundation Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-1239.

CVSS

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EPSS

9.80% (top 7.10%)

CWE

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Published

2020-06-09T19:43:35.000Z

Last modified

2024-08-04T06:31:59.568Z

CVSS vector

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01What is this vulnerability?

02Affected products

Vendor	Product	Versions
Microsoft	Windows	10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems, 10 Version 1709 for 32-bit Systems, 10 Version 1709 for x64-based Systems, 10 Version 1709 for ARM64-based Systems
Microsoft	Windows Server	version 1803 (Core Installation), 2019, 2019 (Core installation)
Microsoft	Windows 10 Version 1909 for 32	bit Systems — unspecified
Microsoft	Windows 10 Version 1909 for x64	based Systems — unspecified
Microsoft	Windows 10 Version 1909 for ARM64	based Systems — unspecified
Microsoft	Windows Server, version 1909 (Server Core installation)	unspecified
Microsoft	Windows 10 Version 1903 for 32	bit Systems — unspecified
Microsoft	Windows 10 Version 1903 for x64	based Systems — unspecified
Microsoft	Windows 10 Version 1903 for ARM64	based Systems — unspecified
Microsoft	Windows Server, version 1903 (Server Core installation)	unspecified
Microsoft	Windows 10 Version 2004 for ARM64	based Systems — unspecified
Microsoft	Windows Server, version 2004 (Server Core installation)	unspecified
Microsoft	Windows 10 Version 2004 for 32	bit Systems — unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

CVE-2020-1239

Cited in vendor advisory

08Timeline

Published: 2020-06-09T19:43:35.000Z
Last modified: 2024-08-04T06:31:59.568Z

09References

portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1238
www.zerodayinitiative.com — https://www.zerodayinitiative.com/advisories/ZDI-20-696/
www.zerodayinitiative.com — https://www.zerodayinitiative.com/advisories/ZDI-20-695/

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