CVE-2020-24372

Name: CVE-2020-24372
Creator: NVD / NIST
Published: 2020-08-17T17:15:13.987+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.47%

Last modified Jun 17, 2026

CVE-2020-24372 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. LuaJIT through 2.1.0-beta3 has an out-of-bounds read in lj_err_run in lj_err.c.. EPSS estimates a 1.47% chance of exploitation in the next 30 days.

Description

LuaJIT through 2.1.0-beta3 has an out-of-bounds read in lj_err_run in lj_err.c.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.47%

70.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions	Update
Luajit	Luajit	<= 2.0.5	—
Luajit	Luajit	2.1.0	Beta1

References

https://github.com/LuaJIT/LuaJIT/issues/603Exploit, Third Party Advisory
https://github.com/LuaJIT/LuaJIT/issues/603Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/08/msg00022.html

Timeline

Published: Aug 17, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-24372?

LuaJIT through 2.1.0-beta3 has an out-of-bounds read in lj_err_run in lj_err.c.

How severe is CVE-2020-24372?

CVE-2020-24372 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.47% probability of exploitation in the next 30 days.

How do I fix CVE-2020-24372?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-24372?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST