CVE-2020-15945
lowpriority · track · 22EPSS 0.005 · 46 %ileDEEURUUSEPSS · scored 2026-10-27
Lua 5.4.0 (fixed in 5.4.1) has a segmentation fault in changedline in ldebug.c (e.g., when called by luaG_traceexec) because it incorrectly expects that an oldpc value is always updated upon a return of the flow of control to a function.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–5.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- SCA-2025-0006Vulnerability affecting picoScan and multiScan2025-04-28csaf · sick_psirtDE
SICK has identified a Denial of Service vulnerability (CVE-2025-32472) in picoScan and multiScan, which can cause the web page to become unresponsive. Due to their architectural design, these products are not affected by the other vulnerabilities listed in this advisory. Currently SICK is not aware of any public exploits specifically targeting the vulnerability. SICK recommends applying the mitigation for CVE-2025-32472.
- BIT-lua-2020-159452024-03-06vendor · osvUS
Lua 5.4.0 (fixed in 5.4.1) has a segmentation fault in changedline in ldebug.c (e.g., when called by luaG_traceexec) because it incorrectly expects that an oldpc value is always updated upon a return of the flow of control to a function.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- http://lua-users.org/lists/lua-l/2020-07/msg00123.htmlcnnvd
- https://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-15945cnnvd
- https://www.lua.org/bugs.html#5.4.0-8cnnvd
- http://lua-users.org/lists/lua-l/2020-07/msg00123.htmlenisa_euvd
- https://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3enisa_euvd
- https://www.lua.org/bugs.html#5.4.0-8enisa_euvd
- http://lua-users.org/lists/lua-l/2020-07/msg00123.htmlExploitMailing ListThird Party Advisorynvd
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