medium5.3
CVE-2025-54939
LiteSpeed QUIC (LSQUIC) Library before 4.3.1 has an lsquic_engine_packet_in memory leak.
Impact
LiteSpeed QUIC (LSQUIC) Library before 4.3.1 has an lsquic_engine_packet_in memory leak.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Litespeedtech | Litespeed Web Adc | before 3.3.1 |
| Litespeedtech | Litespeed Web Server | before 6.3.4 |
| Litespeedtech | Lsquic | before 4.3.1 |
| Litespeedtech | Openlitespeed | before 1.8.4 |
Weakness classification
References
- NVD record
- CVE.org record
- https://blog.litespeedtech.com/2025/08/18/litespeed-security-update/
- https://github.com/litespeedtech/lsquic/blob/70486141724f85e97b08f510673e29f399bbae8f/CHANGELOG#L1-L3
- https://github.com/litespeedtech/lsquic/commit/4cd9252e77fb4a36b572e2167a84067d603d3b23
- https://www.imperva.com/blog/quic-leak-cve-2025-54939-new-high-risk-pre-handshake-remote-denial-of-service-in-lsquic-quic-implementation/