CVE-2020-24370

mediumpriority · track · 32EPSS 0.038 · 90 %ileexploit · PoCDEEURUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
2 exploits · PoC
Likely / severe?
3.83% (90th) EPSS
CVSS 5 · medium
Is it mine?
103 products
Check your exposure
Who says so?
7 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

5.3
010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9
v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lprimary · NVD / NIST USexploitability 3.9 · impact 1.4
v3.15.3mediumAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · FSTEC (BDU) RU
v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · SICK PSIRT DE
v3.15mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:Psecondary · CVSS-BT (t0sche)
v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · Red Hat Product Security US
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-191USprimaryCWE-191USCWE-191USCWE-682US
04

exploits (2)

Public proof-of-concept and weaponised exploit code.

05

affected products (103)

Products and version ranges known to be affected.

showing 20 of 103
06

advisories (4)

Vendor and ecosystem advisories describing this.

  • RHSA-2021:4510Red Hat Security Advisory: lua security update2021-11-09csaf · redhat_csafUS

    An update for lua is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

  • SCA-2025-0006Vulnerability affecting picoScan and multiScan2025-04-28csaf · sick_psirtDE

    SICK has identified a Denial of Service vulnerability (CVE-2025-32472) in picoScan and multiScan, which can cause the web page to become unresponsive. Due to their architectural design, these products are not affected by the other vulnerabilities listed in this advisory. Currently SICK is not aware of any public exploits specifically targeting the vulnerability. SICK recommends applying the mitigation for CVE-2025-32472.

  • WID-SEC-W-2022-0571Red Hat Enterprise Linux: Mehrere SchwachstellenDeutsch2021-11-09csaf · cert_bundDE

    Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Cross-Site-Scripting-Angriff durchzuführen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen, Sicherheitsmaßnahmen zu umgehen, beliebigen Code auszuführen, Dateien zu manipulieren und einen nicht spezifizierten Angriff durchzuführen.

  • BIT-lua-2020-243702024-03-06vendor · osvUS

    ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundredhat_csafsick_psirtosvNVDCVE.orgMITRE
published 2020-08-17modified 2026-06-17
10

references (61)

External citations — patches, advisories, analysis.

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