Stack-based buffer overflow in LuaJIT - CVE-2024-25176
Published: November 3, 2025
Vulnerability identifier: #VU117942
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2024-25176
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: siddhesh (Siddhesh Poyarekar)
Affected software:
LuaJIT
LuaJIT
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the lj_strfmt_wfnum() function in lj_strfmt_num.c. A remote attacker can trick the victim into opening a specially crated file, trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2024-25176
Install updates from vendor's website.