#VU117633 Improper Neutralization of Null Byte or NUL Character in LZ4 - CVE-2025-62813
Published: October 24, 2025
Vulnerability identifier: #VU117633
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-62813
CWE-ID: CWE-158
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
LZ4
LZ4
Software vendor:
LZ4
LZ4
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to missing checks within the LZ4F_createCDict_advanced() function in lib/lz4frame.c. A remote attacker can trick the victim into opening a specially crafted archive and crash the application.
Remediation
Install updates from vendor's repository.