THREATPORT/VULNERABILITY/CVE-2013-3881
HIGH SEVERITY

CVE-2013-3881

Windows 7 vulnerability

CVSS
7.2
EPSS
14.8%
EPSS pct
96th
Exploited
No known
win32k.sys in the kernel-mode drivers in Microsoft Windows 7 SP1 and Windows Server 2008 R2 SP1 allows local users to gain privileges via a crafted application, aka "Win32k NULL Page Vulnerability."
Affected vendor
Microsoft
Affected product
Windows 7
CVSS vector
AV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness type (CWE)
Published
2013-10-09

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 14.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2013-3881

  • Confirm whether Microsoft Windows 7 is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2013-3881.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2013-3881

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2013-3881 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2013-3881?

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