CVE-2018-8544Windows 10 Use-After-Free
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…
Published Nov 13, 2018 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2018-8544 is a high-severity vulnerability (CVSS 8.8 v3) affecting Windows 10 (Microsoft), Windows 7 (Microsoft), Windows 8.1 (Microsoft) and 8 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 48% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3
8.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
48%
Higher than 98.8% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
46/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
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.
Affected Products
28 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10Microsoft | 1607, 1703, 1709, 1803, 1809, >= 32-bit Systems | n/a |
| Windows 7Microsoft | >= 32-bit Systems Service Pack 1 | n/a |
| Windows 8.1Microsoft | >= 32-bit systems | n/a |
| Windows RT 8.1Microsoft | >= Windows RT 8.1 | n/a |
| Windows Server 2008Microsoft | r2-sp1, >= 32-bit Systems Service Pack 2 | n/a |
Timeline
Publicly disclosed
Nov 13, 2018
Last updated
Nov 21, 2024
Weakness Type
- CWE-416 Use After Free
References
- advisory105787
- advisory1042118
- patchportal.msrc.microsoft.com · CVE-2018-8544
- exploitExploitDB-45923
- exploit45923
FAQ
Common Questions.
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, Wind…
Affected: Windows 10 (Microsoft) versions 1607, 1703, 1709, 1803, 1809, >= 32-bit Systems; Windows 7 (Microsoft) versions >= 32-bit Systems Service Pack 1; Windows 8.1 (Microsoft) versions >= 32-bit systems, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2018-8544 On Your Attack Surface?
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