Windows 2003 Server vulnerabilitiesAnd the versions its exploited flaws hit.
Windows 2003 Server is made by Microsoft. We track 546 published vulnerabilities in it, across 32 versions. 5 of them are on the list of flaws known to be exploited, the newest added on 20 May 2026. If you run Windows 2003 Server, check your version against the exploited flaws below and patch those first.
The most recent Windows 2003 Server flaw added to the known-exploited list is CVE-2009-1537, on 20 May 2026. We keep watching the known-exploited list.
Which versions of Windows 2003 Server do the exploited flaws hit?
Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.
- CVE-2009-1537Exploited list, 20 May 2026
Microsoft DirectX NULL Byte Overwrite Vulnerability
all versions - CVE-2015-1701Exploited list, 3 Mar 2022
Microsoft Win32k Privilege Escalation Vulnerability
r2-sp2
3 more exploited flaws name Windows 2003 Server without a version of its own, for example as the system other affected software runs on. They are in the list below.
Which Windows 2003 Server vulnerabilities are being exploited?
5 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 DirectX NULL Byte Overwrite Vulnerability
Microsoft DirectX contains a NULL byte overwrite vulnerability in the QuickTime Movie Parser Filter in quartz.dll in DirectShow which could allow remote attackers to execute arbitrary code via a crafted QuickTime...
- 8.8Microsoft Internet Explorer Use-After-Free Vulnerability
Microsoft Internet Explorer contains an use-after-free vulnerability that could allow remote attackers to execute arbitrary code via vectors involving access to an invalid pointer after the deletion of an object.
- 8.8Microsoft Windows Video ActiveX Control Remote Code Execution Vulnerability
Microsoft Windows Video ActiveX Control contains a remote code execution vulnerability.
- 7.8Microsoft Windows Kernel Privilege Escalation Vulnerability
Microsoft Windows NDProxy.sys in the kernel contains an improper input validation vulnerability which can allow a local attacker to escalate privileges.
- 7.8Microsoft Win32k Privilege Escalation Vulnerability
An unspecified vulnerability exists in the Win32k.sys kernel-mode driver in Microsoft Windows Server that allows a local attacker to execute arbitrary code with elevated privileges.
Which Windows 2003 Server 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.
- 98%CVE-2003-0352High
Buffer overflow in a certain DCOM interface for RPC in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote attackers to execute arbitrary code via a malformed message, as exploited by the...
- 86%CVE-2005-4560High
The Windows Graphical Device Interface library (GDI32.DLL) in Microsoft Windows allows remote attackers to execute arbitrary code via a Windows Metafile (WMF) format image with a crafted SETABORTPROC GDI Escape...
- 83%CVE-2005-0356Medium
Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with the timestamps option enabled allow remote attackers to cause a denial of service (connection loss) via a spoofed packet with...
- 82%
Use-after-free vulnerability in the Peer Objects component (aka iepeers.dll) in Microsoft Internet Explorer 6, 6 SP1, and 7 allows remote attackers to execute arbitrary code via vectors involving access to an invalid...
- 82%CVE-2003-0818High
Multiple integer overflows in Microsoft ASN.1 library (MSASN1.DLL), as used in LSASS.EXE, CRYPT32.DLL, and other Microsoft executables and libraries on Windows NT 4.0, 2000, and XP, allow remote attackers to execute...
- 80%CVE-2004-0790Medium
Multiple TCP/IP and ICMP implementations allow remote attackers to cause a denial of service (reset TCP connections) via spoofed ICMP error messages, aka the "blind connection-reset attack." NOTE: CVE-2004-0790,...
Running Windows 2003 Server? We'll keep checking.
Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.
- Tell us what you runPick your software from a list, or let us work it out from your website.
- We match it to every flawOver 400,000 published flaws, checked against your list.
- Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
- Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.
Free plan, no card needed. Nothing to install.
1 flaw being exploited affects software Acme tracks
Microsoft DirectX contains a NULL byte overwrite vulnerability in the QuickTime Movie Parser Filter in quartz.dll in DirectShow which could allow remote attackers to execute arbitrary code via a crafted QuickTime media file.
- Matched to
- Windows 2003 Server 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 546 published vulnerabilities listed under the name Windows 2003 Server, across 32 versions. The most recent Windows 2003 Server flaw added to the known-exploited list is CVE-2009-1537, on 20 May 2026.
5 are on the list of flaws known to be exploited. The most recently added are CVE-2009-1537, CVE-2010-0806 and CVE-2008-0015.
Each flaw names its own versions, usually as ranges. The newest, CVE-2009-1537, affects all versions. The versions for every exploited flaw are listed on this page.
Create a Precursor Intelligence account and track Windows 2003 Server. 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.