CVE-2009-1534

Exp

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."

Published: 2009-08-12 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2009-1534 is rated High Exploit Risk (81.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 75.43%, 99th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-1534

EDB-ID Source Kind Published Link
16542 exploit_db edb 2010-04-30 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-1534

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 84.19% 75.43% -8.76%
2 2025-03-29 75.43% 84.19% +8.76%
3 2025-03-17 75.43%

Full EPSS history (24 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1534

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
8.6 10.0 [email protected]

Weakness enumeration for CVE-2009-1534

Affected software / configurations for CVE-2009-1534

Vendor Product Version Raw CPE
microsoft isa_server 2004 cpe:2.3:a:microsoft:isa_server:2004:sp3:enterprise:*:*:*:*:*
microsoft isa_server 2004 cpe:2.3:a:microsoft:isa_server:2004:sp3:standard:*:*:*:*:*
microsoft isa_server 2006 cpe:2.3:a:microsoft:isa_server:2006:sp1:enterprise:*:*:*:*:*
microsoft isa_server 2006 cpe:2.3:a:microsoft:isa_server:2006:sp1:standard:*:*:*:*:*
microsoft office cpe:2.3:a:microsoft:office:-:*:small_business_accounting_2006:*:*:*:*:*
microsoft office 2003 cpe:2.3:a:microsoft:office:2003:sp3:*:*:*:*:*:*
microsoft office xp cpe:2.3:a:microsoft:office:xp:sp3:*:*:*:*:*:*
microsoft office_web_components 2000 cpe:2.3:a:microsoft:office_web_components:2000:sp3:*:*:*:*:*:*
microsoft office_web_components 2003 cpe:2.3:a:microsoft:office_web_components:2003:sp1:2007_microsoft_office:*:*:*:*:*
microsoft office_web_components 2003 cpe:2.3:a:microsoft:office_web_components:2003:sp3:*:*:*:*:*:*
microsoft office_web_components xp cpe:2.3:a:microsoft:office_web_components:xp:sp3:*:*:*:*:*:*

References for CVE-2009-1534

cvelogic Threat Intelligence