CVE-2020-9432

9.1 criticalEPSS 0.8%

Critical (9.1) in lua-openssl project lua-openssl. EPSS 0.8% chance of exploitation in the next 30 days.

openssl_x509_check_host in lua-openssl 0.7.7-1 mishandles X.509 certificate validation because it uses lua_pushboolean for certain non-boolean return values.

Severity

CVSS 3.1

9.1 critical

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
CWE: CWE-295
Published: 2020-02-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

lua-openssl_project:lua-openssl

References

https://github.com/zhaozg/lua-openssl/commit/a6dc186dd4b6b9e329a93cca3e7e3cfccfdf3cca
https://github.com/zhaozg/lua-openssl/commit/a6dc186dd4b6b9e329a93cca3e7e3cfccfdf3cca

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