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Vulnerability record · CVE-2022-33099 · published 1 July 2022

CVE-2022-33099: Lua out-of-bounds write vulnerability

Lua · Lua

An issue in the component luaG_runerror of Lua v5.4.4 and below leads to a heap-buffer overflow when a recursive error occurs.

7.5 CVSS 3.1 High EPSS 2.8% · top 13.9% CWE-787 · Out-of-bounds write
7.5CVSS 3.1 base score, v2 5.0
2.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
14References, 6 tagged exploit
17 Jun 2026Last modified by NVD

Description

An issue in the component luaG_runerror of Lua v5.4.4 and below leads to a heap-buffer overflow when a recursive error occurs.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/lua/lua/commit/42d40581dd919fb134c07027ca1ce0844c670daf PatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJNJ66IFDUKWJJZXHGOLRGI
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHYZOEFDVLVAD6EEP4CDW6D
https://lua-users.org/lists/lua-l/2022-05/msg00035.html ExploitMailing ListVendor Advisory
https://lua-users.org/lists/lua-l/2022-05/msg00042.html ExploitMailing ListVendor Advisory
https://lua-users.org/lists/lua-l/2022-05/msg00073.html ExploitMailing ListVendor Advisory
https://www.lua.org/bugs.html#Lua-stack%20overflow%20when%20C%20stack%20overflows%20while%20handling%20an%20error:~:text
https://github.com/lua/lua/commit/42d40581dd919fb134c07027ca1ce0844c670daf PatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJNJ66IFDUKWJJZXHGOLRGI
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHYZOEFDVLVAD6EEP4CDW6D
https://lua-users.org/lists/lua-l/2022-05/msg00035.html ExploitMailing ListVendor Advisory
https://lua-users.org/lists/lua-l/2022-05/msg00042.html ExploitMailing ListVendor Advisory
https://lua-users.org/lists/lua-l/2022-05/msg00073.html ExploitMailing ListVendor Advisory
https://www.lua.org/bugs.html#Lua-stack%20overflow%20when%20C%20stack%20overflows%20while%20handling%20an%20error:~:text

Track CVE-2022-33099 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-33099), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.