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I. Basic Information for CVE-2025-24947
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
算法复杂性
Source: NVD (National Vulnerability Database)
Vulnerability Title
Litespeed Technologie LiteSpeed QUIC(LSQUIC) 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Litespeed Technologie LiteSpeed QUIC(LSQUIC)是美国Litespeed Technologie公司的一种用于服务器和客户端的 QUIC 和 HTTP/3 功能的开源实现。 Litespeed Technologie LiteSpeed QUIC(LSQUIC) 4.2.0版本之前存在安全漏洞,该漏洞源于存在哈希冲突漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
litespeedtechLSQUIC 0 ~ 4.2.0 -
II. Public POCs for CVE-2025-24947
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III. Intelligence Information for CVE-2025-24947
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IV. Related Vulnerabilities
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