CVE-2025-24947CWE-407

A hash collision vulnerability (in the hash table used to manage connections) in LSQUIC (aka LiteSpeed QUIC) before 4.2.0 allows remote attackers to cause a…

Medium · published February 20, 2025

CVSS v3.1
5.3
EPSS
1%
Percentile
51.8
In the wild
Unconfirmed
What it is

A hash collision vulnerability (in the hash table used to manage connections) in LSQUIC (aka LiteSpeed QUIC) before 4.2.0 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). This is caused by XXH32 usage.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00679 · 51.8th percentile
Weakness
CWE-407 · Inefficient Algorithmic Complexity
Published
2025-02-20T00:00Z
EPSS history
Timeline
  • 20 FEB 00:00Z
    A hash collision vulnerability (in the hash table used to manage connections) in LSQUIC (aka LiteSpeed QUIC) before 4.2.0 allows remote attackers to cause a…
    cvelistv5