CVE-2022-33099

Name: CVE-2022-33099
Creator: NVD / NIST
Published: 2022-07-01T12:15:08.173+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.08%

Last modified Jun 17, 2026

CVE-2022-33099 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 2.08% chance of exploitation in the next 30 days.

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.

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

2.08%

79.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Lua	Lua	>= 5.4.2, <= 5.4.4
Fedoraproject	Fedora	35
Fedoraproject	Fedora	36

References

https://github.com/lua/lua/commit/42d40581dd919fb134c07027ca1ce0844c670dafPatch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJNJ66IFDUKWJJZXHGOLRGIA3HWWC36R/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHYZOEFDVLVAD6EEP4CDW6DNONIVVHPA/
https://lua-users.org/lists/lua-l/2022-05/msg00035.htmlExploit, Mailing List, Vendor Advisory
https://lua-users.org/lists/lua-l/2022-05/msg00042.htmlExploit, Mailing List, Vendor Advisory
https://lua-users.org/lists/lua-l/2022-05/msg00073.htmlExploit, Mailing List, Vendor Advisory
https://www.lua.org/bugs.html#Lua-stack%20overflow%20when%20C%20stack%20overflows%20while%20handling%20an%20error:~:text=Lua-stack%20overflow%20when%20C%20stack%20overflows%20while%20handling%20an%20error
https://github.com/lua/lua/commit/42d40581dd919fb134c07027ca1ce0844c670dafPatch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJNJ66IFDUKWJJZXHGOLRGIA3HWWC36R/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHYZOEFDVLVAD6EEP4CDW6DNONIVVHPA/
https://lua-users.org/lists/lua-l/2022-05/msg00035.htmlExploit, Mailing List, Vendor Advisory
https://lua-users.org/lists/lua-l/2022-05/msg00042.htmlExploit, Mailing List, Vendor Advisory
https://lua-users.org/lists/lua-l/2022-05/msg00073.htmlExploit, Mailing List, Vendor Advisory
https://www.lua.org/bugs.html#Lua-stack%20overflow%20when%20C%20stack%20overflows%20while%20handling%20an%20error:~:text=Lua-stack%20overflow%20when%20C%20stack%20overflows%20while%20handling%20an%20error

Timeline

Published: Jul 1, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-33099?

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.

How severe is CVE-2022-33099?

CVE-2022-33099 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.08% probability of exploitation in the next 30 days.

How do I fix CVE-2022-33099?

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-2022-33099?

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

Scan your code now

Source: NVD / NIST