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 due to the lack of prime strength checking in the `CL Signatures Issuer Key Correctness Proofa. An attacker can undermine the unlinkability guarantees of AnonCreds by using a maliciously generated private key that does not meet the required strength, allowing the attacker to potentially link credential presentations to individual holders. This is only exploitable if the issuer generates a private key that does not conform to the safe prime requirements and if verifiers collude with the issuer.
This vulnerability can be mitigated by issuers providing a key correctness proof that demonstrates the generation of a sufficiently strong private key, as outlined in the referenced academic paper.