# Office Web Components vulnerabilities > Office Web Components is made by Microsoft. We track 13 published vulnerabilities in it, across 4 versions. 2 of them are on the list of flaws known to be exploited, the newest added on 3 March 2022. If you run Office Web Components, check your version against the exploited flaws below and patch those first. Canonical page: https://www.precursorintelligence.com/product/microsoft/office_web_components ## At a glance - **Made by:** [Microsoft](https://www.precursorintelligence.com/vendors/microsoft) - **Published vulnerabilities:** 13 - **Known to be exploited:** 2 - **Versions tracked:** 4 - **Most recently added to the known-exploited list:** [CVE-2012-1856](https://www.precursorintelligence.com/what-is/cve-2012-1856), 3 March 2022. We keep watching the list. ## Which versions of Office Web Components do the exploited flaws hit? Each exploited flaw lists the versions it affects, as published. - [CVE-2012-1856](https://www.precursorintelligence.com/what-is/cve-2012-1856) (Microsoft Office MSCOMCTL.OCX Remote Code Execution Vulnerability): 2003-sp3 - [CVE-2012-0158](https://www.precursorintelligence.com/what-is/cve-2012-0158) (Microsoft MSCOMCTL.OCX Remote Code Execution Vulnerability): 2003-sp3 ## Which Office Web Components vulnerabilities are being exploited? 2 flaws are on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2012-1856](https://www.precursorintelligence.com/what-is/cve-2012-1856): Microsoft Office MSCOMCTL.OCX Remote Code Execution Vulnerability. High, CVSS 8.8, chance of use in 30 days 72%, known exploited since 3 March 2022. - [CVE-2012-0158](https://www.precursorintelligence.com/what-is/cve-2012-0158): Microsoft MSCOMCTL.OCX Remote Code Execution Vulnerability. High, CVSS 8.8, chance of use in 30 days >99%, known exploited since 3 November 2021. ## Which Office Web Components flaws are most likely to be used? Ranked by the latest exploit-likelihood forecast (the chance each flaw is used in an attack in the next 30 days): - [CVE-2009-1534](https://www.precursorintelligence.com/what-is/cve-2009-1534): 52%, Critical (CVSS 9.3) - [CVE-2006-4695](https://www.precursorintelligence.com/what-is/cve-2006-4695): 40%, Critical (CVSS 9.3) - [CVE-2009-2496](https://www.precursorintelligence.com/what-is/cve-2009-2496): 29%, Critical (CVSS 9.3) - [CVE-2009-0562](https://www.precursorintelligence.com/what-is/cve-2009-0562): 26%, Critical (CVSS 9.3) - [CVE-2002-1338](https://www.precursorintelligence.com/what-is/cve-2002-1338): 23%, Medium (CVSS 5.0) - [CVE-2002-0727](https://www.precursorintelligence.com/what-is/cve-2002-0727): 19%, High (CVSS 7.5) - [CVE-2002-0860](https://www.precursorintelligence.com/what-is/cve-2002-0860): 19%, Medium (CVSS 5.0) ## Questions ### How many vulnerabilities does Office Web Components have? We track 13 published vulnerabilities listed under the name Office Web Components, across 4 versions. The most recent Office Web Components flaw added to the known-exploited list is CVE-2012-1856, on 3 March 2022. ### Which Office Web Components vulnerabilities are being exploited? 2 are on the list of flaws known to be exploited. The most recently added are CVE-2012-1856 and CVE-2012-0158. ### Which versions of Office Web Components do the exploited flaws affect? Each flaw names its own versions, usually as ranges. The newest, CVE-2012-1856, affects 2003-sp3. The versions for every exploited flaw are listed on this page. ### How do I get alerts for Office Web Components? Create a Precursor Intelligence account and track Office Web Components. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook. ## Running Office Web Components? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact