Vulnerability Intelligence Report
CVE-2025-24947
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.
No Active Exploit Signals
CVSS Base Score
5.3
MEDIUM
Exploitability:3.9
Impact Score:1.5
EPSS Probability:0.62%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-407 ↗CWE-407 Inefficient Algorithmic Complexity
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| litespeedtech | LSQUIC | 0 < 4.2.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.622%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2025-01-29T00:00:00 |
| Published | 2025-02-20T00:00:00 |
| Last Updated | 2025-02-20T20:19:05 |
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