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CVE-2020-24369

23
FAUCET Score

CVE-2020-24369 describes a NULL pointer dereference vulnerability in Lua 5.4.0, specifically within the ldebug.c component, which occurs when attempting to access debug information of a stripped function via a line hook. This flaw carries a CVSS v3.1 score of 7.5 (HIGH), indicating a network-exploitable vulnerability with low attack complexity that can lead to a high impact on availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
5.4.0CPE matchmatch criteria
cpe:2.3:a:lua:lua:5.4.0:-:*:*:*:*:*:*

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
1.73%
Probability of exploitation in next 30 days
EPSS Percentile
75.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0173 is in the 58th percentile among its peer group of 51,485 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 (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2020-24369Low

lua: NULL pointer dereference when trying to access debug information via the line hook of a stripped function

Jul 24, 2020

References

github.com / lua/lua/commit/ae5b5ba529753c7a653901ffc29b5ea24c3fdf3a
PatchThird Party Advisory
lua.org / bugs.html
ExploitVendor Advisory