Status of Windows 7 and Windows Server 2008 R2 micropatches

This article presents the current status of vulnerabilities affecting Windows 7 and Windows Server 2008 R2 after their end of support on January 14, 2020, as well as the current status of our micropatches issued for these vulnerabilities. Note that in order for us to issue a micropatch for a vulnerability, we must consider it high-risk and have a test case ("POC", proof-of-concept) at hand to be able to reproduce and analyze the issue. Accordingly, only vulnerabilities currently eligible for micropatching are included in the table.    

The table below will be continually updated with status changes (e.g., if a vulnerability becomes exploited, if our risk assessment changes, when we issue a micropatch) and new eligible vulnerabilities as we become aware of them either through Microsoft's documentation or other sources (e.g., a vulnerability getting published or privately reported to us).

For any questions please contact [e-mail].

 

CVE ID	Title	Public	RCE	Exploited	Comment	0patch status
CVE-2020-0674	Scripting Engine Memory Corruption Vulnerability	yes	yes	yes	Found exploited in the wild in limited attacks; vendor initially provided a workaround; we created a micropatch to implement the same workaround without side effects;	Micropatch issued on 2/19/2020 for Windows 7 / Server 2008 R2, and previous "temporary workaround" micropatch (402) revoked for these platforms Micropatch issued on 2/21/2020 for Windows 10 v1903/v1909 and previous "temporary workaround" micropatch (407) revoked for these platforms Note: this micropatch modifies the behavior of JScript function sort such that calling it with a callback function will behave as if it was called without one (i.e., sort will always perform a string-based sort). We assess this will affect a small number of applications, and not in a critical way. ("Temporary workaround" micropatches 403, 404, 405, 407 remain in place for other platforms.)
CVE-2020-0729	LNK Remote Code Execution Vulnerability	yes	yes	no	User must be tricked into opening a folder under attacker's control (e.g., from a remote share or a USB key). Stuxnet exploited a similar vulnerability.	Micropatch issued on 4/3/2020 for Windows 7 and Server 2008 R2
CVE-2020-0938, CVE-2020-1020	Type 1 Font Parsing Remote Code Execution Vulnerability	no	yes	yes	Initially a 0day, fixed by Microsoft with April 2020 updates.	Micropatch issued on 3/27/2020 for Windows 7 and Server 2008 R2 - this micropatch prevents the processing of Type 1 PostScript fonts
CVE-2020-0683	Windows Installer Elevation of Privilege Vulnerability	yes	no	no	POC published by researcher	Micropatch issued on 3/12/2020 for Windows 7 and Server 2008 R2
CVE-2020-0881	GDI+ Remote Code Execution Vulnerability	no	yes	no	POC obtained	Micropatch issued on 3/19/2020 for Windows 7 and Server 2008 R2
CVE-2020-0687	Microsoft Graphics Remote Code Execution Vulnerability	no	yes	no	POC provided by security researcher	Micropatch issued on 4/22/2020 for Windows 7 and Server 2008 R2
CVE-2020-0668	Windows Service Tracing Elevation of Privilege Vulnerability	yes	no	no	POC published by researcher	Micropatch issued on 3/20/2020 for Windows 7 and Server 2008 R2
CVE-2020-1048	Print Spooler Elevation of Privilege ("PrintDemon")	yes	no	no	POC published by researcher	Micropatch issued on 5/20/2020 for Windows 7 and Server 2008 R2
CVE-2020-1015	User-Mode Power Service Memory Corruption	yes	no	no	POC published by researcher	Micropatch issued on 5/27/2020 for Windows 7 and Server 2008 R2
CVE-2020-0686	Windows Installer Elevation of Privilege Vulnerability	yes	no	no	POC published by researcher	We determined that in order to exploit this issue, a vulnerable application which places critical files in attacker-writable folders must already be installed by administrator. We therefore do not consider this issue to significantly increase the (already present) risk caused by that application.
CVE-2020-0787	Windows Background Intelligent Transfer Service Elevation of Privilege Vulnerability	yes	no	no	POC published by researcher	Analysis underway
CVE-2020-0673	Scripting Engine Memory Corruption Vulnerability	no	yes	no	Likely related to CVE-2020-0674	Trying to obtain a POC; meanwhile, our workaround micropatches for CVE-2020-0674 should prevent this vulnerability from being exploited
CVE-2020-0655	Remote Desktop Services Remote Code Execution Vulnerability	no	yes	no	To exploit this vulnerability, an attacker must already have compromised a system running Remote Desktop Services, and then wait for a victim system to connect to Remote Desktop Services.	Trying to obtain a POC
CVE-2020-0662	Windows Remote Code Execution Vulnerability	no	yes	no	To exploit the vulnerability, an attacker who has a domain user account could create a specially crafted request, causing Windows to execute arbitrary code with elevated permissions.	Trying to obtain a POC
CVE-2020-0681	Remote Desktop Client Remote Code Execution Vulnerability	no	yes	no	User must connect to a malicious or compromised server with Remote Desktop Client, in the former case having to confirm a security warning about an invalid server certificate	Trying to obtain a POC
CVE-2020-0708	Windows Imaging Library Remote Code Execution Vulnerability	no	yes	no	To exploit this vulnerability, an attacker would  have to coerce a victim to open a specially crafted file.	Trying to obtain a POC
CVE-2020-0734	Remote Desktop Client Remote Code Execution Vulnerability	no	yes	no	User must connect to a malicious or compromised server with Remote Desktop Client, in the former case having to confirm a security warning about an invalid server certificate	Trying to obtain a POC
CVE-2020-0738	Media Foundation Memory Corruption Vulnerability	no	yes	no	Exploit confirmed against a sample app; exploitation against actual applications questionable	Analysis underway, developing a POC
CVE-2020-0883	GDI+ Remote Code Execution Vulnerability	no	yes	no	To exploit this vulnerability, an attacker would have to convince a victim to open a specially crafted file.	Trying to obtain a POC
CVE-2020-0847	VBScript Remote Code Execution Vulnerability	no	yes	no	To exploit this vulnerability, an attacker would have to convince a victim to visit a malicious web page with Internet Explorer or open a specially crafted file.	Trying to obtain a POC
CVE-2020-0768	Scripting Engine Memory Corruption Vulnerability	no	yes	no	To exploit this vulnerability, an attacker would have to convince a victim to visit a malicious web page with Internet Explorer or open a specially crafted file.	Trying to obtain a POC
CVE-2020-0824	Internet Explorer Memory Corruption Vulnerability	no	yes	no	To exploit this vulnerability, an attacker would have to convince a victim to visit a malicious web page with Internet Explorer	Trying to obtain a POC
CVE-2020-0684	LNK Remote Code Execution Vulnerability	no	yes	no	User must be tricked into opening a folder under attacker's control (e.g., from a remote share or a USB key)	Trying to obtain a POC