CVE-2021-26855 Attacker hosts for 2026-10-23

Oct 23, 2026 Exploitation

Last Updated: 00:00 UTC

Microsoft Exchange ProxyLogon SSRF granting unauthenticated access to the Exchange backend.

CVE References

CVE-2021-26855

Observed URIs

Attackers by Country

Germany: 21United States: 10United Kingdom: 7The Netherlands: 6Singapore: 5Canada: 4India: 3
Germany2137.5%
United States1017.9%
United Kingdom712.5%
The Netherlands610.7%
Singapore58.9%
Canada47.1%
India35.4%

IP Address : ASN : City/Provider

  • 128.199.182.152 : AS14061 DigitalOcean, LLC : Singapore

  • 134.209.25.199 : AS14061 DigitalOcean, LLC : Slough

  • 138.197.191.87 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 138.68.144.227 : AS14061 DigitalOcean, LLC : Slough

  • 138.68.86.32 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 139.59.132.8 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 139.59.136.184 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 139.59.138.49 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 139.59.143.102 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 139.59.230.191 : AS14061 DigitalOcean, LLC : Singapore

  • 139.59.231.238 : AS14061 DigitalOcean, LLC : Singapore

  • 142.93.129.190 : AS14061 DigitalOcean, LLC : Amsterdam

  • 142.93.143.8 : AS14061 DigitalOcean, LLC : Amsterdam

  • 144.126.198.24 : AS14061 DigitalOcean, LLC : Slough

  • 146.190.103.103 : AS14061 DigitalOcean, LLC : Singapore

  • 146.190.242.161 : AS14061 DigitalOcean, LLC : Toronto

  • 146.190.63.248 : AS14061 DigitalOcean, LLC : Santa Clara

  • 146.190.63.48 : AS14061 DigitalOcean, LLC : Santa Clara

  • 157.230.19.140 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 157.245.105.107 : AS14061 DigitalOcean, LLC : Bengaluru

  • 159.223.132.86 : AS14061 DigitalOcean, LLC : North Bergen

  • 159.65.144.72 : AS14061 DigitalOcean, LLC : Bengaluru

  • 159.89.12.166 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 159.89.127.165 : AS14061 DigitalOcean, LLC : Toronto

  • 159.89.174.87 : AS14061 DigitalOcean, LLC : Bengaluru

  • 164.90.208.56 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 164.90.222.93 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 164.92.244.132 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 165.22.235.3 : AS14061 DigitalOcean, LLC : Toronto

  • 165.227.173.41 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 165.227.39.235 : AS14061 DigitalOcean, LLC : Toronto

  • 165.227.84.14 : AS14061 DigitalOcean, LLC : North Bergen

  • 167.172.232.142 : AS14061 DigitalOcean, LLC : Clifton

  • 167.71.175.236 : AS14061 DigitalOcean, LLC : Clifton

  • 167.71.81.114 : AS14061 DigitalOcean, LLC : Clifton

  • 167.99.210.137 : AS14061 DigitalOcean, LLC : Amsterdam

  • 172.212.226.229 : AS8075 Microsoft Corporation : Des Moines

  • 172.235.183.127 : AS63949 Akamai Connected Cloud : Amsterdam

  • 178.128.207.138 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 206.189.19.19 : AS14061 DigitalOcean, LLC : Slough

  • 206.189.2.13 : AS14061 DigitalOcean, LLC : Amsterdam

  • 206.189.225.181 : AS14061 DigitalOcean, LLC : North Bergen

  • 206.81.12.187 : AS14061 DigitalOcean, LLC : North Bergen

  • 206.81.24.227 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 206.81.24.74 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 207.154.197.113 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 207.154.212.47 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 209.38.208.202 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 209.38.248.17 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 209.97.180.8 : AS14061 DigitalOcean, LLC : Slough

  • 46.101.1.225 : AS14061 DigitalOcean, LLC : Slough

  • 64.225.75.246 : AS14061 DigitalOcean, LLC : Amsterdam

  • 64.226.65.160 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 64.226.78.121 : AS14061 DigitalOcean, LLC : Frankfurt am Main

  • 64.227.32.66 : AS14061 DigitalOcean, LLC : Slough

  • 68.183.180.73 : AS14061 DigitalOcean, LLC : Singapore

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