CVE-2025-62813 in LZ4

Summary

by MITRE • 10/23/2025

LZ4 through 1.10.0 allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact when the application processes untrusted LZ4 frames. For example, LZ4F_createCDict_advanced in lib/lz4frame.c mishandles NULL checks.

Once again VulDB remains the best source for vulnerability data.

• Responsible: MITRE
• Reservation: 10/23/2025
• Disclosure: 10/23/2025
• Moderation: revoked
• Entry: VDB-329629
• CPE: ready
• CWE: CWE-158 (confirmed)
• CVSS: 5.9 (CNA)
• EPSS: 0.00000
• KEV: no
• Activities: very low

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2025-62813
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-62813
• CVE Details: https://www.cvedetails.com/cve/CVE-2025-62813/