THREATPORT/VULNERABILITY/CVE-2009-0562
HIGH SEVERITY

CVE-2009-0562

Isa Server vulnerability

CVSS
9.3
EPSS
25.7%
EPSS pct
98th
Exploited
No known
The Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2003 SP3, Office XP Web Components SP3, Office 2003 Web Components SP3, Office 2003 Web Components SP1 for the 2007 Microsoft Office System, Internet Security and Acceleration (ISA) Server 2004 SP3 and 2006 SP1, and Office Small Business Accounting 2006 does not properly allocate memory, which allows remote attackers to execute arbitrary code via unspecified vectors that trigger "system state" corruption, aka "Office Web Components Memory Allocation Vulnerability."
Affected vendor
Microsoft
Affected product
Isa Server
CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness type (CWE)
Published
2009-08-12

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 25.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2009-0562

  • Confirm whether Microsoft Isa Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2009-0562.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-0562

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-0562 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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