Out-of-bounds memory ops in lz4-java 1.8.0 and earlier
CVE-2025-12183 Published on November 28, 2025
org.lz4:lz4-java - Out-of-Bounds Memory Access
Out-of-bounds memory operations in org.lz4:lz4-java 1.8.0 and earlier allow remote attackers to cause denial of service and read adjacent memory via untrusted compressed input.
Weakness Type
Out-of-bounds Read
The software reads data past the end, or before the beginning, of the intended buffer. Typically, this can allow attackers to read sensitive information from other memory locations or cause a crash. A crash can occur when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string. The expected sentinel might not be located in the out-of-bounds memory, causing excessive data to be read, leading to a segmentation fault or a buffer overflow. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent read operation then produces undefined or unexpected results.
Products Associated with CVE-2025-12183
Want to know whenever a new CVE is published for Oracle? stack.watch will email you.
Vulnerable Packages
The following package name and versions may be associated with CVE-2025-12183
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| maven | at.yawk.lz4:lz4-java | <= 1.10.0 | 1.10.1 |
| maven | org.lz4:lz4-java | <= 1.8.1 | |
| maven | org.lz4:lz4-pure-java | <= 1.8.1 | |
| maven | net.jpountz.lz4:lz4 | <= 1.8.1 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.