CVE-2025-12183

FAUCET Score

CVE-2025-12183 describes an out-of-bounds memory operation vulnerability in org.lz4:lz4-java versions 1.8.0 and earlier. This flaw, rated 8.8 HIGH, allows remote attackers to trigger denial of service and read adjacent memory by providing untrusted compressed input. While the attack complexity is low and no user interaction is required, there is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

Vendor	Product	Version(s)
Https://Repo1.Maven.Org/Maven2	Net.Jpountz.Lz4:Lz4	>= 1.0.0, <= 1.8.0CNA affecteddefault unaffected
Https://Repo1.Maven.Org/Maven2	Org.Lz4:Lz4-Java	>= 1.0.0, <= 1.8.0CNA affecteddefault unaffected
Https://Repo1.Maven.Org/Maven2	Org.Lz4:Lz4-Pure-Java	>= 1.0.0, <= 1.8.0CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 4.0

8.8HIGH

CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

NETWORK

Attack Complexity

LOW

Attack Requirements

NONE

Privileges Required

NONE

User Interaction

NONE

VS Confidentiality

HIGH

VS Integrity

NONE

VS Availability

HIGH

SS Confidentiality

NONE

SS Integrity

NONE

SS Availability

NONE

Exploit Maturity

NOT_DEFINED

CvssVersion

4.0

Exploit Intelligence

EPSS Score

0.71%

Probability of exploitation in next 30 days

EPSS Percentile

49.7%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0071 is in the 26th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (25)

mavenpatch availablevia ghsa

Product: at.yawk.lz4:lz4-javaFixed in: 1.8.1

mavenpatch availablevia ghsa

Product: org.lz4:lz4-javaFixed in: 1.8.1

redhatpatch availablevia redhat_api

Product: Red Hat build of Quarkus 3.20.4.SP1Fixed in: lz4-java

View patch

redhatpatch availablevia redhat_api

Product: Red Hat build of Quarkus 3.27.1.SP1Fixed in: lz4-java

View patch

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 8.1

View patch

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Fixed in: eap8-wildfly-0:8.1.4-2.GA_redhat_00005.1.el8eap

View patch

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Fixed in: eap8-wildfly-0:8.1.4-2.GA_redhat_00005.1.el9eap

View patch