CVE-2014-4715: Yann Collet LZ4 before r119, when used on certain 32-bit platforms that allocate memory beyond 0x80000000, doe

Q: How do I fix CVE-2014-4715?

lz4: upgrade to newer than r118. Exact commands for each OS are on this page.

Q: Is CVE-2014-4715 being exploited?

CVE-2014-4715 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2014-4715 affect?

CVE-2014-4715 affects lz4. Severity is medium (CVSS 5.0). Yann Collet LZ4 before r119, when used on certain 32-bit platforms that allocate memory beyond 0x80000000, does not properly detect integer overflows, which allows context-dependent attackers to cause a denial of service (memory corruption)

Q: How urgent is CVE-2014-4715?

Priority 39/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2014-4715 is a medium-severity flaw (CVSS 5.0) affecting lz4. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Yann Collet LZ4 before r119, when used on certain 32-bit platforms that allocate memory beyond 0x80000000, does not properly detect integer overflows, which allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted Literal Run, a different vulnerability than CVE-2014-4611.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.8% (top 14%)
CISA exploited list	No
Weakness	CWE-189
Published	2014-07-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: yann collet

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-07-03 04:22 UTCPublished CVE record published
2026-06-17 00:10 UTCUpdated Record last modified

yann collet lz4 UPGRADE

Affected: <= r118

Fixed in: newer than r118

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy lz4 || rpm -q lz4 || lz4 --version

2. UPGRADE to newer than r118 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade lz4

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade lz4

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2014-4715?

lz4: upgrade to newer than r118. Exact commands for each OS are on this page.

Is CVE-2014-4715 being exploited?

CVE-2014-4715 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2014-4715 affect?

CVE-2014-4715 affects lz4. Severity is medium (CVSS 5.0). Yann Collet LZ4 before r119, when used on certain 32-bit platforms that allocate memory beyond 0x80000000, does not properly detect integer overflows, which allows context-dependent attackers to cause a denial of service (memory corruption)

How urgent is CVE-2014-4715?

Priority 39/100. No elevated risk signals yet.

Related CVEs

CVE-2021-3520 CRITICAL 9.8 UPGRADE MITIGATE There's a flaw in lz4
CVE-2019-17543 HIGH 8.1 UPGRADE LZ4 before 1.9.2 has a heap-based buffer overflow in LZ4_write32 (related to LZ4_compress_destSize), affecting

References

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