THREATPORT/VULNERABILITY/CVE-2011-0033
HIGH SEVERITY

CVE-2011-0033

Windows 2003 Server vulnerability

CVSS
9.3
EPSS
20.7%
EPSS pct
97th
Exploited
No known
The OpenType Compact Font Format (CFF) driver in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly validate parameter values in OpenType fonts, which allows remote attackers to execute arbitrary code via a crafted font, aka "OpenType Font Encoded Character Vulnerability."
Affected vendor
Microsoft
Affected product
Windows 2003 Server
CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2011-02-10

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium 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 20.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2011-0033

  • Confirm whether Microsoft Windows 2003 Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2011-0033.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-0033

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2011-0033 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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