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CVE-2025-23020: An issue was discovered in Kwik before 0.10.1. A hash collision vulnerability (in the hash table used to manage connections) allows remote...
5.3
CVSS
Description
An issue was discovered in Kwik before 0.10.1. A hash collision vulnerability (in the hash table used to manage connections) allows remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs).
Classification
CVE ID: CVE-2025-23020
CVSS Base Severity: MEDIUM
CVSS Base Score: 5.3
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Products
Vendor: ptrd
Product: Kwik
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.12% (probability of being exploited)
EPSS Percentile: 28.23% (scored less or equal to compared to others)
EPSS Date: 2025-03-21 (when was this score calculated)
References
https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisoryhttps://github.com/ptrd/kwik/releases/tag/v0.10.1