# Windows Defender vulnerabilities > Windows Defender is made by Microsoft. We track 30 published vulnerabilities listed under that exact name, across 2 versions. 2 of them are on the list of flaws known to be exploited, the newest added on 3 March 2022. Microsoft lists newer releases under their own names, such as Windows Defender for Endpoint, so check those pages too. Canonical page: https://www.precursorintelligence.com/product/microsoft/windows_defender ## At a glance - **Made by:** [Microsoft](https://www.precursorintelligence.com/vendors/microsoft) - **Published vulnerabilities:** 30 - **Known to be exploited:** 2 (listed under the name Windows Defender) - **Versions tracked:** 2 - **Most recently added to the known-exploited list:** [CVE-2017-8540](https://www.precursorintelligence.com/what-is/cve-2017-8540), 3 March 2022. We keep watching the list. ## Is Windows Defender listed under other names? Microsoft also lists Windows Defender under more specific names, such as Windows Defender for Endpoint and Windows Defender Antimalware Platform. Flaws listed only under those names are counted on their own pages, not here. - [Windows Defender for Endpoint](https://www.precursorintelligence.com/product/microsoft/windows_defender_for_endpoint): 2 published vulnerabilities - [Windows Defender Antimalware Platform](https://www.precursorintelligence.com/product/microsoft/windows_defender_antimalware_platform): 1 published vulnerability - [Windows Defender Security Intelligence Updates](https://www.precursorintelligence.com/product/microsoft/windows_defender_security_intelligence_updates): 1 published vulnerability ## Which Windows Defender vulnerabilities are being exploited? 2 flaws are on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2017-8540](https://www.precursorintelligence.com/what-is/cve-2017-8540): Microsoft Malware Protection Engine Improper Restriction of Operations Vulnerability. High, CVSS 7.8, chance of use in 30 days 72%, known exploited since 3 March 2022. - [CVE-2021-1647](https://www.precursorintelligence.com/what-is/cve-2021-1647): Microsoft Defender Remote Code Execution Vulnerability. High, CVSS 7.8, chance of use in 30 days 39%, known exploited since 3 November 2021. ## Which Windows Defender 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-2017-0290](https://www.precursorintelligence.com/what-is/cve-2017-0290): 81%, High (CVSS 7.8) - [CVE-2018-0986](https://www.precursorintelligence.com/what-is/cve-2018-0986): 63%, High (CVSS 8.8) - [CVE-2017-8558](https://www.precursorintelligence.com/what-is/cve-2017-8558): 44%, High (CVSS 7.8) - [CVE-2021-1647](https://www.precursorintelligence.com/what-is/cve-2021-1647): 39%, High (CVSS 7.8), known exploited - [CVE-2006-5270](https://www.precursorintelligence.com/what-is/cve-2006-5270): 30%, Critical (CVSS 9.3) - [CVE-2017-11937](https://www.precursorintelligence.com/what-is/cve-2017-11937): 28%, High (CVSS 7.8) - [CVE-2017-11940](https://www.precursorintelligence.com/what-is/cve-2017-11940): 20%, High (CVSS 7.8) ## Questions ### How many vulnerabilities does Windows Defender have? We track 30 published vulnerabilities listed under the name Windows Defender, across 2 versions. The most recent Windows Defender flaw added to the known-exploited list is CVE-2017-8540, on 3 March 2022. ### Which Windows Defender vulnerabilities are being exploited? 2 are on the list of flaws known to be exploited. The most recently added are CVE-2017-8540 and CVE-2021-1647. ### Why are newer Windows Defender flaws missing from this page? Microsoft also lists Windows Defender under more specific names, such as Windows Defender for Endpoint and Windows Defender Antimalware Platform. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list. ### How do I get alerts for Windows Defender? Create a Precursor Intelligence account and track Windows Defender. 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 Windows Defender? 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