Vulnerability in Microsoft Windows_7
CVE-2011-3402
Unspecified vulnerability in the TrueType font parsing engine in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7…
EPSS: 0.783 (99.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Public proof-of-concept exploits
References
- secure@microsoft.com (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- secure@microsoft.com (Broken Link, signature, x_refsource_OVAL, vdb-entry)
- secure@microsoft.com (US Government Resource, x_refsource_CERT, third-party-advisory)
- secure@microsoft.com (x_refsource_MISC, Broken Link)
- secure@microsoft.com (vdb-entry, x_refsource_SECTRACK, Broken Link)
- secure@microsoft.com (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- secure@microsoft.com (x_refsource_MS, vendor-advisory, Vendor Advisory)
- secure@microsoft.com (x_refsource_MISC, Not Applicable)
- secure@microsoft.com (US Government Resource, x_refsource_CERT, third-party-advisory)
- secure@microsoft.com (Broken Link, signature, x_refsource_OVAL, vdb-entry)
Frequently asked questions
- What is CVE-2011-3402?
- CVE-2011-3402 is a high-severity vulnerability in Microsoft Windows_7. CVSS score: 8.8/10. Published 2011-11-04.
- How severe is CVE-2011-3402?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2011-3402 known to be exploited?
- Yes. CVE-2011-3402 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-10-06), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.