Description
Microsoft Exchange Server Remote Code Execution Vulnerability
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2010 Service Pack 3 | 14.0.0.0 – < 14.03.0513.000 | 14.03.0513.000 |
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 21 | 15.00.0 – < 15.00.1395.012 | 15.00.1395.012 |
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 22 | 15.00.0 – < 15.00.1473.006 | 15.00.1473.006 |
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 23 | 15.00.0 – < 15.00.1497.012 | 15.00.1497.012 |
| Microsoft | Microsoft Exchange Server 2013 Service Pack 1 | 15.00.0 – < 15.00.0847.064 | 15.00.0847.064 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 10 | 15.01.0 – < 15.01.1531.012 | 15.01.1531.012 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 11 | 15.01.0 – < 15.01.1591.018 | 15.01.1591.018 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 12 | 15.01.0 – < 15.01.1713.010 | 15.01.1713.010 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 13 | 15.01.0 – < 15.01.1779.008 | 15.01.1779.008 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 14 | 15.01.0 – < 15.01.1847.012 | 15.01.1847.012 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 15 | 15.01.0 – < 15.01.1913.012 | 15.01.1913.012 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 16 | 15.01.0 – < 15.01.1979.008 | 15.01.1979.008 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 17 | 15.01.0 – < 15.01.2044.013 | 15.01.2044.013 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 18 | 15.01.0 – < 15.01.2106.013 | 15.01.2106.013 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 19 | 15.01.0 – < 15.01.2176.009 | 15.01.2176.009 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 8 | 15.01.0 – < 15.01.1415.010 | 15.01.1415.010 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 9 | 15.01.0 – < 15.01.1466.016 | 15.01.1466.016 |
| Microsoft | Microsoft Exchange Server 2019 | 15.02.0 – < 15.02.0221.018 | 15.02.0221.018 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 1 | 15.02.0 – < 15.01.1979.006 | 15.01.1979.006 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 2 | 15.02.0 – < 15.02.0397.011 | 15.02.0397.011 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 3 | 15.02.0 – < 15.02.0464.015 | 15.02.0464.015 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 4 | 15.02.0 – < 15.02.0659.012 | 15.02.0659.012 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 5 | 15.02.0 – < 15.02.0595.008 | 15.02.0595.008 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 6 | 15.02.0 – < 15.02.0529.013 | 15.02.0529.013 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 7 | 15.02.0 – < 15.02.0721.013 | 15.02.0721.013 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 8 | 15.02.0 – < 15.02.0792.010 | 15.02.0792.010 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
sirpedrotavares/Proxylogon-exploit ★ 111 · Mar 11, 2021
proxylogon exploit - CVE-2021-26857
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- MSRC-CVE-2021-26857 Microsoft Exchange Server Remote Code Execution Vulnerability Microsoft Security Response Center · Mar 16, 2021
References
- Microsoft Exchange Server Remote Code Execution Vulnerability vendor-advisory patch