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CVE-2022-33099

27
FAUCET Score

CVE-2022-33099 is a heap-buffer overflow vulnerability in the luaG_runerror component of Lua v5.4.4 and earlier, triggered by recursive errors, affecting various Fedora and Lua products. With a CVSS score of 7.5 (HIGH), it presents a network-exploitable threat with low attack complexity, potentially leading to high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.4.2, <= 5.4.4CPE matchmatch criteria
cpe:2.3:a:lua:lua:*:*:*:*:*:*:*:*
35CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
36CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.52%
Probability of exploitation in next 30 days
EPSS Percentile
83.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0252 is in the 70th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (22)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 19717-17084Fixed in: 7.95-1
microsoftpatch availablevia msrc
Product: 18678-17084Fixed in: 7.95-1
microsoftpatch availablevia msrc
Product: 18676-16820Fixed in: 5.3.5-9
microsoftpatch availablevia msrc
Product: 18677-16823Fixed in: 5.4.3-4
microsoftpatch availablevia msrc
Product: 16908-17084Fixed in: 5.2.1-4
microsoftpatch availablevia msrc
Product: 19082-17084Fixed in: 5.2.1-4
microsoftpatch availablevia msrc
Product: 19666-17084Fixed in: 18.2.2-1
microsoftpatch availablevia msrc
Product: azl3 nmap 7.94-1 on Azure Linux 3.0Fixed in: 7.95-1
microsoftpatch availablevia msrc
Product: azl3 nmap 7.95-1 on Azure Linux 3.0Fixed in: 7.95-1
microsoftpatch availablevia msrc
Product: cm1 lua 5.3.5-9 on CBL Mariner 1.0Fixed in: 5.3.5-9
microsoftpatch availablevia msrc
Product: cbl2 lua 5.4.3-4 on CBL Mariner 2.0Fixed in: 5.4.3-4
microsoftpatch availablevia msrc
Product: azl3 ntopng 5.2.1-4 on Azure Linux 3.0Fixed in: 5.2.1-4
microsoftpatch availablevia msrc
Product: azl3 ntopng 5.2.1-5 on Azure Linux 3.0Fixed in: 5.2.1-4
microsoftpatch availablevia msrc
Product: azl3 ceph 18.2.2-8 on Azure Linux 3.0Fixed in: 18.2.2-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 5.4.3-4
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 5.4.3-4
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 7.95-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 5.2.1-4
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 7.95-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 5.2.1-4
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: lua-0:5.4.2-4.el9_0.3
View patch

Vendor Advisories (3)

microsoft2024-Sep/CVE-2022-33099

CVE-2022-33099

Sep 10, 2024
microsoft2022-Jul/CVE-2022-33099Important

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.

Jul 12, 2022
redhatCVE-2022-33099Moderate

lua: heap buffer overflow in luaG_errormsg() in ldebug.c due to uncontrolled recursion in error handling

Jul 1, 2022

References

github.com / lua/lua/commit/42d40581dd919fb134c07027ca1ce0844c670daf
PatchThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/RJNJ66IFDUKWJJZXHGOLRGIA3HWWC36R
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/UHYZOEFDVLVAD6EEP4CDW6DNONIVVHPA
lua-users.org / lists/lua-l/2022-05/msg00035.html
ExploitMailing ListVendor Advisory
lua-users.org / lists/lua-l/2022-05/msg00042.html
ExploitMailing ListVendor Advisory
lua-users.org / lists/lua-l/2022-05/msg00073.html
ExploitMailing ListVendor Advisory
lua.org / bugs.html