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I. Basic Information for CVE-2025-54939
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
LiteSpeed QUIC (LSQUIC) Library before 4.3.1 has an lsquic_engine_packet_in memory leak.
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
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
Litespeed Technologie LiteSpeed QUIC 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 4.3.1之前版本存在安全漏洞，该漏洞源于lsquic_engine_packet_in存在内存泄漏。
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 ~ 4.3.1 -
II. Public POCs for CVE-2025-54939
#POC DescriptionSource LinkShenlong Link
1POC for CVE-2025-54939. ~ forcibly loads 200MiB/s in server's memoryhttps://github.com/yohannslm/CVE-2025-54939POC Details
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III. Intelligence Information for CVE-2025-54939
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IV. Related Vulnerabilities
Same product: LSQUIC
Same vendor: litespeedtech
Same weakness: CWE-770
V. Comments for CVE-2025-54939

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