Exploit maturity not defined.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature when it is configured to listen to multiple addresses or ports, with each of them using different backend servers. An attacker with the ability to observe or manipulate packets between the client and server and who is also configured as a backend for the server, can misdirect client requests to an unintended backend, potentially exposing the contents of HTTPS requests.
Notes:
An H2O instance is vulnerable to this attack only if all of the following conditions are met:
This vulnerability can be mitigated by stopping the use of host-level listen
directives in favor of global-level ones.