Subscribe to receive notifications of new posts:

Staying afloat: the DROWN Attack and CloudFlare

2016-03-01

1 min read

CloudFlare customers are automatically protected against the recently disclosed DROWN Attack. We do not have SSLv2 enabled on our servers.

We publish our SSL configuration here so that others can use it. We currently accept TLS 1.0, 1.1 and 1.2.

We are proactively testing our customers' origin web servers to detect vulnerable servers and will be reaching out to any that have a server that is vulnerable to DROWN.

In the interim, ensure that SSLv2 is fully disabled and/or that private keys are not shared with servers that still need to have SSLv2.

Cloudflare's connectivity cloud protects entire corporate networks, helps customers build Internet-scale applications efficiently, accelerates any website or Internet application, wards off DDoS attacks, keeps hackers at bay, and can help you on your journey to Zero Trust.

Visit 1.1.1.1 from any device to get started with our free app that makes your Internet faster and safer.

To learn more about our mission to help build a better Internet, start here. If you're looking for a new career direction, check out our open positions.
AttacksSSLVulnerabilitiesSecurity

Follow on X

Cloudflare|@cloudflare

Related posts

December 11, 2025 4:20 PM

React2Shell and related RSC vulnerabilities threat brief: early exploitation activity and threat actor techniques

Early activity indicates that threat actors quickly integrated this vulnerability into their scanning and reconnaissance routines and targeted critical infrastructure including nuclear fuel, uranium and rare earth elements. We outline the tactics they appear to be using and how Cloudflare is protecting customers. ...

November 05, 2025 2:00 PM

How Workers VPC Services connects to your regional private networks from anywhere in the world

Workers VPC Services enter open beta today. We look under the hood to see how Workers VPC connects your globally-deployed Workers to your regional private networks by using Cloudflare's global network, while abstracting cross-cloud networking complexity....