VulnerabilityDeferred

CVE-2025-12183

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.

HIGH 8.8EPSS 0.70%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 4.0: 8.8 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/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/M
EPSS: 0.70% probability · 51th percentile
CISA KEV: Not listed
Weakness: CWE-125
Source: 103e4ec9-0a87-450b-af77-479448ddef11

References

https://github.com/yawkat/lz4-java/releases/tag/v1.8.1
https://www.sonatype.com/security-advisories/cve-2025-12183
http://www.openwall.com/lists/oss-security/2025/12/01/5

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.