# Internet Explorer 11 on Windows Server 2012 R2 security updates Patch Radar has 107 security fixes for Internet Explorer 11 on Windows Server 2012 R2, closing 307 CVEs, 21 of which are being exploited. The newest security fix is KB5003209, released May 11, 2021. This product is no longer supported. - Web page: https://patchblox.com/security/product/microsoft/internet-explorer-11-on-windows-server-2012-r2 - Platform: Microsoft - Vendor: Microsoft - Supported: no ## Security fixes, newest first | Fix | Released | Fixed in | Priority | CVEs | Exploited | |---|---|---|---|---:|---:| | [KB5003209](https://patchblox.com/security/data/fix/microsoft/kb5003209.md) | May 11, 2021 | | Urgent | 13 | 0 | | [KB5003165](https://patchblox.com/security/data/fix/microsoft/kb5003165.md) | May 11, 2021 | | Urgent | 1 | 0 | | [KB5000848](https://patchblox.com/security/data/fix/microsoft/kb5000848.md) | Mar 9, 2021 | | Patch now | 28 | 1 | | [KB5000800](https://patchblox.com/security/data/fix/microsoft/kb5000800.md) | Mar 9, 2021 | | Patch now | 1 | 1 | | [KB4586845](https://patchblox.com/security/data/fix/microsoft/kb4586845.md) | Nov 10, 2020 | | Patch now | 34 | 1 | | [KB4586768](https://patchblox.com/security/data/fix/microsoft/kb4586768.md) | Nov 10, 2020 | | Urgent | 1 | 0 | | [KB4577066](https://patchblox.com/security/data/fix/microsoft/kb4577066.md) | Sep 8, 2020 | | Patch now | 49 | 1 | | [KB4577010](https://patchblox.com/security/data/fix/microsoft/kb4577010.md) | Sep 8, 2020 | | Patch now | 2 | 1 | | [KB4571703](https://patchblox.com/security/data/fix/microsoft/kb4571703.md) | Aug 11, 2020 | | Patch now | 58 | 2 | | [KB4571687](https://patchblox.com/security/data/fix/microsoft/kb4571687.md) | Aug 11, 2020 | | Patch now | 3 | 1 | | [KB4565541](https://patchblox.com/security/data/fix/microsoft/kb4565541.md) | Jul 14, 2020 | | Patch now | 43 | 1 | | [KB4565479](https://patchblox.com/security/data/fix/microsoft/kb4565479.md) | Jul 14, 2020 | | Urgent | 2 | 0 | | [KB4561666](https://patchblox.com/security/data/fix/microsoft/kb4561666.md) | Jun 9, 2020 | | Patch now | 46 | 1 | | [KB4561603](https://patchblox.com/security/data/fix/microsoft/kb4561603.md) | Jun 9, 2020 | | Urgent | 9 | 0 | | [KB4556846](https://patchblox.com/security/data/fix/microsoft/kb4556846.md) | May 12, 2020 | | Patch now | 37 | 1 | | [KB4556798](https://patchblox.com/security/data/fix/microsoft/kb4556798.md) | May 12, 2020 | | Urgent | 7 | 0 | | [KB4550961](https://patchblox.com/security/data/fix/microsoft/kb4550961.md) | Apr 14, 2020 | | Patch now | 43 | 4 | | [KB4550905](https://patchblox.com/security/data/fix/microsoft/kb4550905.md) | Apr 14, 2020 | | Patch now | 4 | 1 | | [KB4541509](https://patchblox.com/security/data/fix/microsoft/kb4541509.md) | Mar 10, 2020 | | Patch now | 60 | 1 | | [KB4540671](https://patchblox.com/security/data/fix/microsoft/kb4540671.md) | Mar 10, 2020 | | Urgent | 6 | 0 | | [KB4537821](https://patchblox.com/security/data/fix/microsoft/kb4537821.md) | Feb 11, 2020 | | Patch now | 54 | 2 | | [KB4537767](https://patchblox.com/security/data/fix/microsoft/kb4537767.md) | Feb 11, 2020 | | Patch now | 3 | 1 | | [KB4534297](https://patchblox.com/security/data/fix/microsoft/kb4534297.md) | Jan 14, 2020 | | Urgent | 27 | 0 | | [KB4534251](https://patchblox.com/security/data/fix/microsoft/kb4534251.md) | Jan 14, 2020 | | Routine | 1 | 0 | | [KB4530702](https://patchblox.com/security/data/fix/microsoft/kb4530702.md) | Dec 10, 2019 | | Patch now | 11 | 1 | | [KB4530677](https://patchblox.com/security/data/fix/microsoft/kb4530677.md) | Dec 10, 2019 | | Urgent | 1 | 0 | | [KB4525243](https://patchblox.com/security/data/fix/microsoft/kb4525243.md) | Nov 12, 2019 | | Patch now | 39 | 3 | | [KB4525106](https://patchblox.com/security/data/fix/microsoft/kb4525106.md) | Nov 12, 2019 | | Patch now | 2 | 1 | | [KB4520005](https://patchblox.com/security/data/fix/microsoft/kb4520005.md) | Oct 8, 2019 | | Patch now | 27 | 2 | | [KB4519974](https://patchblox.com/security/data/fix/microsoft/kb4519974.md) | Oct 8, 2019 | | Patch now | 6 | 1 | | [KB4516067](https://patchblox.com/security/data/fix/microsoft/kb4516067.md) | Sep 10, 2019 | | Patch now | 37 | 2 | | [KB4516046](https://patchblox.com/security/data/fix/microsoft/kb4516046.md) | Sep 10, 2019 | | Urgent | 4 | 0 | | [KB4512488](https://patchblox.com/security/data/fix/microsoft/kb4512488.md) | Aug 13, 2019 | | Urgent | 41 | 0 | | [KB4511872](https://patchblox.com/security/data/fix/microsoft/kb4511872.md) | Aug 13, 2019 | | Routine | 3 | 0 | | [KB4507448](https://patchblox.com/security/data/fix/microsoft/kb4507448.md) | Jul 9, 2019 | | Patch now | 30 | 2 | | [KB4507434](https://patchblox.com/security/data/fix/microsoft/kb4507434.md) | Jul 9, 2019 | | Urgent | 6 | 0 | | [KB4503276](https://patchblox.com/security/data/fix/microsoft/kb4503276.md) | Jun 11, 2019 | | Urgent | 41 | 0 | | [KB4503259](https://patchblox.com/security/data/fix/microsoft/kb4503259.md) | Jun 11, 2019 | | Urgent | 7 | 0 | | [KB4499151](https://patchblox.com/security/data/fix/microsoft/kb4499151.md) | May 14, 2019 | | Patch now | 30 | 2 | | [KB4498206](https://patchblox.com/security/data/fix/microsoft/kb4498206.md) | May 14, 2019 | | Urgent | 6 | 0 | | [KB4493446](https://patchblox.com/security/data/fix/microsoft/kb4493446.md) | Apr 9, 2019 | | Patch now | 39 | 3 | | [KB4493435](https://patchblox.com/security/data/fix/microsoft/kb4493435.md) | Apr 9, 2019 | | Patch now | 5 | 1 | | [KB4489881](https://patchblox.com/security/data/fix/microsoft/kb4489881.md) | Mar 12, 2019 | | Patch now | 32 | 2 | | [KB4489873](https://patchblox.com/security/data/fix/microsoft/kb4489873.md) | Mar 12, 2019 | | Urgent | 11 | 0 | | [KB4487000](https://patchblox.com/security/data/fix/microsoft/kb4487000.md) | Feb 12, 2019 | | Patch now | 29 | 1 | | [KB4486474](https://patchblox.com/security/data/fix/microsoft/kb4486474.md) | Feb 12, 2019 | | Patch now | 3 | 1 | | [KB4480963](https://patchblox.com/security/data/fix/microsoft/kb4480963.md) | Jan 8, 2019 | | Patch now | 19 | 2 | | [KB4480965](https://patchblox.com/security/data/fix/microsoft/kb4480965.md) | Jan 8, 2019 | | Patch now | 1 | 1 | | [KB4483187](https://patchblox.com/security/data/fix/microsoft/kb4483187.md) | Dec 19, 2018 | | Patch now | 1 | 1 | | [KB4471320](https://patchblox.com/security/data/fix/microsoft/kb4471320.md) | Dec 11, 2018 | | Patch now | 13 | 2 | | [KB4470199](https://patchblox.com/security/data/fix/microsoft/kb4470199.md) | Dec 11, 2018 | | Urgent | 4 | 0 | | [KB4467697](https://patchblox.com/security/data/fix/microsoft/kb4467697.md) | Nov 13, 2018 | | Urgent | 18 | 0 | | [KB4466536](https://patchblox.com/security/data/fix/microsoft/kb4466536.md) | Nov 13, 2018 | | Urgent | 2 | 0 | | [KB4462926](https://patchblox.com/security/data/fix/microsoft/kb4462926.md) | Oct 9, 2018 | | Patch now | 17 | 1 | | [KB4462949](https://patchblox.com/security/data/fix/microsoft/kb4462949.md) | Oct 9, 2018 | | Urgent | 2 | 0 | | [KB4457129](https://patchblox.com/security/data/fix/microsoft/kb4457129.md) | Sep 11, 2018 | | Patch now | 25 | 1 | | [KB4457426](https://patchblox.com/security/data/fix/microsoft/kb4457426.md) | Sep 11, 2018 | | Urgent | 5 | 0 | | [KB4343898](https://patchblox.com/security/data/fix/microsoft/kb4343898.md) | Aug 14, 2018 | | Patch now | 22 | 2 | | [KB4343205](https://patchblox.com/security/data/fix/microsoft/kb4343205.md) | Aug 14, 2018 | | Patch now | 10 | 1 | | [KB4338815](https://patchblox.com/security/data/fix/microsoft/kb4338815.md) | Jul 10, 2018 | | Urgent | 14 | 0 | | [KB4338831](https://patchblox.com/security/data/fix/microsoft/kb4338831.md) | Jul 10, 2018 | | Urgent | 14 | 0 | | [KB4345424](https://patchblox.com/security/data/fix/microsoft/kb4345424.md) | Jul 10, 2018 | | Urgent | 14 | 0 | | [KB4339093](https://patchblox.com/security/data/fix/microsoft/kb4339093.md) | Jul 10, 2018 | | Urgent | 6 | 0 | | [KB4230450](https://patchblox.com/security/data/fix/microsoft/kb4230450.md) | Jun 22, 2018 | | Urgent | 3 | 0 | | [KB4284815](https://patchblox.com/security/data/fix/microsoft/kb4284815.md) | Jun 12, 2018 | | Urgent | 11 | 0 | | [KB4103725](https://patchblox.com/security/data/fix/microsoft/kb4103725.md) | May 8, 2018 | | Patch now | 21 | 2 | | [KB4103768](https://patchblox.com/security/data/fix/microsoft/kb4103768.md) | May 8, 2018 | | Urgent | 8 | 0 | | [KB4093114](https://patchblox.com/security/data/fix/microsoft/kb4093114.md) | Apr 10, 2018 | | Urgent | 35 | 0 | | [KB4092946](https://patchblox.com/security/data/fix/microsoft/kb4092946.md) | Apr 10, 2018 | | Urgent | 13 | 0 | | [KB4088876](https://patchblox.com/security/data/fix/microsoft/kb4088876.md) | Mar 13, 2018 | | Urgent | 28 | 0 | | [KB4089187](https://patchblox.com/security/data/fix/microsoft/kb4089187.md) | Mar 13, 2018 | | Urgent | 8 | 0 | | [KB4074594](https://patchblox.com/security/data/fix/microsoft/kb4074594.md) | Feb 13, 2018 | | Urgent | 14 | 0 | | [KB4074736](https://patchblox.com/security/data/fix/microsoft/kb4074736.md) | Feb 13, 2018 | | Urgent | 2 | 0 | | [KB4056895](https://patchblox.com/security/data/fix/microsoft/kb4056895.md) | Jan 18, 2018 | | Urgent | 12 | 0 | | [KB4056568](https://patchblox.com/security/data/fix/microsoft/kb4056568.md) | Jan 5, 2018 | | Urgent | 2 | 0 | | [KB4054519](https://patchblox.com/security/data/fix/microsoft/kb4054519.md) | Dec 12, 2017 | | Urgent | 14 | 0 | | [KB4052978](https://patchblox.com/security/data/fix/microsoft/kb4052978.md) | Dec 12, 2017 | | Urgent | 13 | 0 | | [KB4048958](https://patchblox.com/security/data/fix/microsoft/kb4048958.md) | Nov 14, 2017 | | Urgent | 22 | 0 | | [KB4047206](https://patchblox.com/security/data/fix/microsoft/kb4047206.md) | Nov 14, 2017 | | Urgent | 12 | 0 | | [KB4041693](https://patchblox.com/security/data/fix/microsoft/kb4041693.md) | Oct 10, 2017 | | Urgent | 29 | 0 | | [KB4040685](https://patchblox.com/security/data/fix/microsoft/kb4040685.md) | Oct 10, 2017 | | Urgent | 5 | 0 | | [KB4038792](https://patchblox.com/security/data/fix/microsoft/kb4038792.md) | Sep 12, 2017 | | Urgent | 36 | 0 | | [KB4036586](https://patchblox.com/security/data/fix/microsoft/kb4036586.md) | Sep 12, 2017 | | Urgent | 8 | 0 | | [KB4034681](https://patchblox.com/security/data/fix/microsoft/kb4034681.md) | Aug 8, 2017 | | Urgent | 17 | 0 | | [KB4034733](https://patchblox.com/security/data/fix/microsoft/kb4034733.md) | Aug 8, 2017 | | Urgent | 7 | 0 | | [KB4025336](https://patchblox.com/security/data/fix/microsoft/kb4025336.md) | Jul 11, 2017 | | Urgent | 29 | 0 | | [KB4025252](https://patchblox.com/security/data/fix/microsoft/kb4025252.md) | Jul 11, 2017 | | Urgent | 7 | 0 | | [KB4022726](https://patchblox.com/security/data/fix/microsoft/kb4022726.md) | Jun 13, 2017 | | Patch now | 58 | 2 | | [KB4021558](https://patchblox.com/security/data/fix/microsoft/kb4021558.md) | Jun 13, 2017 | | Urgent | 6 | 0 | | [KB4019215](https://patchblox.com/security/data/fix/microsoft/kb4019215.md) | May 9, 2017 | | Patch now | 28 | 3 | | [KB4018271](https://patchblox.com/security/data/fix/microsoft/kb4018271.md) | May 9, 2017 | | Patch now | 5 | 1 | | [KB4015550](https://patchblox.com/security/data/fix/microsoft/kb4015550.md) | Apr 11, 2017 | | Patch now | 27 | 2 | | [KB4014661](https://patchblox.com/security/data/fix/microsoft/kb4014661.md) | Apr 11, 2017 | | Patch now | 4 | 2 | | [KB4012216](https://patchblox.com/security/data/fix/microsoft/kb4012216.md) | Mar 14, 2017 | | Patch now | 52 | 12 | | [KB4012204](https://patchblox.com/security/data/fix/microsoft/kb4012204.md) | Mar 14, 2017 | | Patch now | 11 | 3 | | [KB3205400](https://patchblox.com/security/data/fix/microsoft/kb3205400.md) | Dec 13, 2016 | | Urgent | 15 | 0 | | [KB3205401](https://patchblox.com/security/data/fix/microsoft/kb3205401.md) | Dec 13, 2016 | | Urgent | 15 | 0 | | [KB3197873](https://patchblox.com/security/data/fix/microsoft/kb3197873.md) | Nov 8, 2016 | | Patch now | 34 | 2 | | [KB3197874](https://patchblox.com/security/data/fix/microsoft/kb3197874.md) | Nov 8, 2016 | | Patch now | 34 | 2 | | [KB3185331](https://patchblox.com/security/data/fix/microsoft/kb3185331.md) | Oct 11, 2016 | | Patch now | 27 | 2 | Showing the newest 100 of 107 fixes. --- Data as of 2026-11-12T07:53:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.