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HIGH

CVE-2020-24342

CVSS v3

7.8

HIGH

EPSS Score

1.1 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Lua through 5.4.0 allows a stack redzone cross in luaO_pushvfstring because a protection mechanism wrongly calls luaD_callnoyield twice in a row.

Technical details

Published
2020-08-13

Frequently asked questions

What is CVE-2020-24342?

Lua through 5.4.0 allows a stack redzone cross in luaO_pushvfstring because a protection mechanism wrongly calls luaD_callnoyield twice in a row.

Is CVE-2020-24342 actively exploited?

Active exploitation of CVE-2020-24342 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-24342?

CVE-2020-24342 has a CVSS v3 base score of 7.8 (HIGH severity).

Is CVE-2020-24342 affecting your environment?

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