CVE-2020-24372: luajit Out-of-bounds Read
Vulnerability summary
CVE-2020-24372 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in luajit. EPSS estimates a 1.54% chance of exploitation in the next 30 days, higher than 74.9% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2Timeline
- 17-08-2020PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
Description
LuaJIT through 2.1.0-beta3 has an out-of-bounds read in lj_err_run in lj_err.c.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.54%
Chance of exploitation in the next 30 days
Percentile
75%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.54% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundLuajit
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- luajit< 2.1.0~beta3+git20210112+dfsg-2
Luajit1 product
- luajit≤ 2.0.5 | 2.1.0:beta1 | 2.1.0:beta2 | 2.1.0:beta3
Ubuntu1 product
- luajitAll versions (No fix recorded)
3 vendors · 3 products
