Vulnerability Details : CVE-2018-8544
A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
Vulnerability category: Execute code
Products affected by CVE-2018-8544
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:*
- cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-8544
94.62%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-8544
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST | |
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2018-8544
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-8544
-
https://www.exploit-db.com/exploits/45923/
VBScript - 'OLEAUT32!VariantClear' and 'scrrun!VBADictionary::put_Item' Use-After-FreeExploit;VDB Entry;Third Party Advisory
-
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8544
CVE-2018-8544 - Security Update Guide - Microsoft - Windows VBScript Engine Remote Code Execution VulnerabilityPatch;Vendor Advisory
-
http://www.securityfocus.com/bid/105787
Microsoft Windows VBScript Engine CVE-2018-8544 Remote Code Execution VulnerabilityThird Party Advisory;VDB Entry
-
http://www.securitytracker.com/id/1042118
Windows VBScript Engine File Processing Flaw Lets Remote Users Execute Arbitrary Code - SecurityTrackerThird Party Advisory;VDB Entry
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