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Fencer Vulns
critical 9.3

CVE-2009-1534 in the critical feed json

Buffer overflow in the Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2000 Web Components SP3, Office XP Web Comp…

published 2009-08-12 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-1530

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
51.6%
EPSS 51.6% chance of exploitation in 30 days, percentile 98%
public exploits
2
Metasploit, Exploit-DB

Summary

Buffer overflow in the Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2000 Web Components SP3, Office XP Web Components SP3, BizTalk Server 2002, and Visual Studio .NET 2003 SP1 allows remote attackers to execute arbitrary code via crafted property values, aka "Office Web Components Buffer Overflow Vulnerability."

Patch / fix

Timeline

  1. First public exploit (Metasploit exploit/windows/browser/ms09_043_owc_htmlurl)
  2. Published

Exploit prediction

51.61% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.