Buffer overflow in the Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2000 Web Components SP3, Office XP Web Compo
Noroxi assessment
Priority: Plan (action score 52/100)
- A ready-made attack module is public (Metasploit); exploiting it takes no special expertise.
- Probability of exploitation in the next 30 days: 51.6% (FIRST EPSS); higher than 98.9% of all records.
- According to the record, no fixed version is available yet.
Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
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
- Aug 12, 2009
- Updated
- Jun 16, 2026
- EPSS
- 51.6% · 99th percentile
- CWE
- CWE-119
Report tools
Action score
52
Plan
Add it to your regular patch cycle.
- CVSS
- 37 / 40 · 9.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 15 / 30 · 51.6%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Weaponized exploit exists
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
Is your version affected? Check itNoroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| microsoft | biztalk server | cpe:2.3:a:microsoft:biztalk_server |
| microsoft | isa server | cpe:2.3:a:microsoft:isa_server |
| microsoft | office | cpe:2.3:a:microsoft:office |
| microsoft | office web components | cpe:2.3:a:microsoft:office_web_components |
| microsoft | visual studio .net | cpe:2.3:a:microsoft:visual_studio_.net |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- microsoft isa server2004
- microsoft isa server2006
- microsoft officeall versions
- microsoft office2003
- microsoft officexp
- microsoft office web components2000
- microsoft office web components2003
- microsoft office web componentsxp
Same product
microsoft: all recordsOther highest-scoring records for the same primary product.
- CVE-2007-0940Unspecified vulnerability in the Cryptographic API Component Object Model Certificates ActiveX control (CAPICOM.dll) in Microsoft CAPICOM an60This week
- CVE-2009-2496Heap-based buffer overflow in the Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2003 SP3, Office XP Web Component46Plan
- CVE-2007-1201Unspecified vulnerability in certain COM objects in Microsoft Office Web Components 2000 allows user-assisted remote attackers to execute ar46Plan
- CVE-2003-0117Buffer overflow in the HTTP receiver function (BizTalkHTTPReceive.dll ISAPI) of Microsoft BizTalk Server 2002 allows attackers to execute ar33Monitor
- CVE-2003-0118SQL injection vulnerability in the Document Tracking and Administration (DTA) website of Microsoft BizTalk Server 2000 and 2002 allows remot32Monitor
- CVE-2015-2475Cross-site scripting (XSS) vulnerability in uddi/search/frames.aspx in the UDDI Services component in Microsoft Windows Server 2008 SP2 and 21Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Metasploit module ×1
- Exploit-DB entry ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | remote | 2010-04-30 |
| Metasploit module | exploit/windows/browser/ms09_043_owc_htmlurlMicrosoft OWC Spreadsheet HTMLURL Buffer Overflowexploit | 2009-08-11 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Metasploit-2 d
- Published
- First PoC+260 d
- TodayOct 12, 2026+6270 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
If successful
- Confidentiality
- C · data can be read
- Integrity
- C · data or configuration can be modified
- Availability
- C · the service can be disrupted
- Attack complexity
- M
- Confidentiality impact
- C
- Integrity impact
- C
- Availability impact
- C
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- osvdb.org/56916
- www.securityfocus.com/bid/35992
- www.securitytracker.com/id?1022708
- www.us-cert.gov/cas/techalerts/TA09-223A.html
- docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-043
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6326
Vendor advisories and official records. Exploit/PoC links are deliberately left out.