CVE-2013-3128
CriticalExploitedThe kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT, and .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, and 4.5, allow remote attackers…
Published Oct 9, 2013 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2013-3128 is a critical-severity vulnerability (CVSS 9.3 v2) affecting .net Framework (Microsoft), Windows 7 (Microsoft), Windows 8 (Microsoft) and 6 more products.
- It is exploited in the wild, listed in Industry KEV feed since Feb 22, 2021. No public exploit code is known.
- EPSS estimates a 50% 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 it is listed as exploited in the wild.
CVSS v2
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
50%
Higher than 98.9% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
None known
Get the full CVE-2013-3128 brief as a PDF
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Description
The kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT, and .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, and 4.5, allow remote attackers to execute arbitrary code via a crafted OpenType font (OTF) file, aka "OpenType Font Parsing Vulnerability."
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Feb 22, 2021 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
23 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| .net FrameworkMicrosoft | 3.0-sp2, 3.5, 3.5.1, 4.0, 4.5 | n/a |
| Windows 7Microsoft | See advisory | n/a |
| Windows 8Microsoft | See advisory | n/a |
| Windows RtMicrosoft | See advisory | n/a |
| Windows Server 2003Microsoft | See advisory | n/a |
Timeline
Publicly disclosed
Oct 9, 2013
Added to Industry KEV feed
Feb 22, 2021
Last updated
Apr 28, 2026
References
- advisoryoval:org.mitre.oval:def:18847
- advisoryTA13-288A
- patchMS13-081
- patchMS13-082
- exploitVulnCheck exploitation report
FAQ
Common Questions.
The kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT, and .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, and 4.5, allow remote attackers to execute arbitrary code via a crafted…
Affected: .net Framework (Microsoft) versions 3.0-sp2, 3.5, 3.5.1, 4.0, 4.5; Windows 7 (Microsoft); Windows 8 (Microsoft), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Feb 22, 2021.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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