VDB
DEBIAN-CVE-2025-66566
DEBIAN-CVE-2025-66566
PUBLISHED
CVSS 8.199999809265137 HIGH
yawkat LZ4 Java provides LZ4 compression for Java. Insufficient clearing of the output buffer in Java-based decompressor implementations in lz4-java 1.10.0 and earlier allows remote attackers to read previous buffer contents via crafted compressed input. In applications where the output buffer is reused without being cleared, this may lead to disclosure of sensitive data. JNI-based implementations are not affected. This vulnerability is fixed in 1.10.1.
Risk Scores
CVSS 4.0
8.199999809265137
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | lz4-java | 0, 1.8.0-4, 0 |
| Debian:12 | lz4-java | 0, 1.8.0-3, 1.8.0-4 |
| Debian:11 | lz4-java | 0, 1.5.1-3, 1.8.0-1 |
| Debian:13 | lz4-java | 0, 1.8.0-4, 0 |
Exploit Intelligence
- LZ4Compressor.kt (github-poc)
- XXHasher.kt (github-poc)
- ESLZ4Decompressor.java (github-poc)
Timeline
- Dec 5, 2025 CVE Published
- Apr 28, 2026 CVE Updated