Windows 8 vulnerabilitiesAnd the versions its exploited flaws hit.
Windows 8 is made by Microsoft. We track 324 published vulnerabilities in it, across 1 version. 32 of them are on the list of flaws known to be exploited, the newest added on 6 October 2025. If you run Windows 8, check your version against the exploited flaws below and patch those first.
The most recent Windows 8 flaw added to the known-exploited list is CVE-2013-3918, on 6 October 2025. We keep watching the known-exploited list.
Which versions of Windows 8 do the exploited flaws hit?
Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.
Showing the 30 most recently added of 32 exploited flaws. The full list is below.
Which Windows 8 vulnerabilities are being exploited?
32 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 8.8Microsoft Windows Out-of-Bounds Write Vulnerability
Microsoft Windows contains an out-of-bounds write vulnerability in the InformationCardSigninHelper Class ActiveX control, icardie.dll.
- 8.8Microsoft Internet Explorer Memory Corruption Vulnerability
Microsoft Internet Explorer contains a memory corruption vulnerability that allows remote attackers to execute code or cause a denial of service via a crafted website.
- 8.8Microsoft XML Core Services Memory Corruption Vulnerability
Microsoft XML Core Services contains a memory corruption vulnerability which could allow for remote code execution.
- 6.5Microsoft Internet Explorer Information Disclosure Vulnerability
An information disclosure vulnerability exists in Internet Explorer which allows resources loaded into memory to be queried.
- 8.8Microsoft Windows Remote Code Execution Vulnerability
A remote code execution vulnerability exists when the Windows kernel-mode driver improperly handles TrueType fonts.
- 8.8Microsoft Win32k Privilege Escalation Vulnerability
Win32k.sys in the kernel-mode drivers in Microsoft Windows allows local users to gain privileges or cause denial-of-service (DoS).
- 6.6Microsoft Windows Mount Manager Privilege Escalation Vulnerability
A privilege escalation vulnerability exists when the Windows Mount Manager component improperly processes symbolic links.
- 7.8Microsoft Windows TS WebProxy Directory Traversal Vulnerability
Directory traversal vulnerability in the TS WebProxy (TSWbPrxy) component in Microsoft Windows allows remote attackers to escalate privileges.
Which Windows 8 flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- >99%
HTTP.sys in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1, and Windows Server 2012 Gold and R2 allows remote attackers to execute arbitrary code via crafted HTTP requests, aka "HTTP.sys...
- 97%CVE-2015-0014Critical
Buffer overflow in the Telnet service in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, and Windows Server 2012 Gold and R2 allows...
- 96%CVE-2014-6321Critical
Schannel in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote...
- 95%
Use-after-free vulnerability in Adobe Flash Player before 13.0.0.269 and 14.x through 16.x before 16.0.0.305 on Windows and OS X and before 11.2.202.442 on Linux allows remote attackers to execute arbitrary code via...
- 95%
OleAut32.dll in OLE in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1...
- 94%
Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.302 on Windows and OS X, 14.x through 18.0.0.203 on Windows and OS X, 11.x...
- 91%CVE-2014-0569Critical
Integer overflow in Adobe Flash Player before 13.0.0.250 and 14.x and 15.x before 15.0.0.189 on Windows and OS X and before 11.2.202.411 on Linux, Adobe AIR before 15.0.0.293, Adobe AIR SDK before 15.0.0.302, and...
- 87%
The Kerberos Key Distribution Center (KDC) in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, and Windows Server 2012 Gold and R2...
- 87%
win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows...
- 87%
Buffer underflow in atmfd.dll in the Windows Adobe Type Manager Library in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and...
Running Windows 8? We'll keep checking.
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1 flaw being exploited affects software Acme tracks
Microsoft Windows contains an out-of-bounds write vulnerability in the InformationCardSigninHelper Class ActiveX control, icardie.dll. An attacker could exploit the vulnerability by constructing a specially crafted webpage. When a user views the webpage, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the current user. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
- Matched to
- Windows 8 on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 324 published vulnerabilities listed under the name Windows 8, across 1 version. The most recent Windows 8 flaw added to the known-exploited list is CVE-2013-3918, on 6 October 2025.
32 are on the list of flaws known to be exploited. The most recently added are CVE-2013-3918, CVE-2013-3163 and CVE-2012-1889.
Create a Precursor Intelligence account and track Windows 8. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.