CVE-2025-54939

LiteSpeed QUIC (LSQUIC) Library before 4.3.1 has an lsquic_engine_packet_in memory leak.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://blog.litespeedtech.com/2025/08/18/litespeed-security-update/	Vendor Advisory
https://github.com/litespeedtech/lsquic/blob/70486141724f85e97b08f510673e29f399bbae8f/CHANGELOG#L1-L3	Release Notes
https://github.com/litespeedtech/lsquic/commit/4cd9252e77fb4a36b572e2167a84067d603d3b23	Release Notes
https://www.imperva.com/blog/quic-leak-cve-2025-54939-new-high-risk-pre-handshake-remote-denial-of-service-in-lsquic-quic-implementation/	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:litespeedtech:litespeed_web_adc::::::::
	cpe:2.3:a:litespeedtech:litespeed_web_server::::::::
	cpe:2.3:a:litespeedtech:lsquic::::::::
	cpe:2.3:a:litespeedtech:openlitespeed::::::::

History

No history.

Information

Published : 2025-08-01 06:15

Updated : 2025-08-27 15:52

NVD link : CVE-2025-54939

Mitre link : CVE-2025-54939

CVE.ORG link : CVE-2025-54939

JSON object : View

Products Affected

litespeedtech

litespeed_web_adc
lsquic
openlitespeed
litespeed_web_server

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

CWE-401

Missing Release of Memory after Effective Lifetime

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