What’s Vulnerable › Vulnerabilities

CVE-2020-15888

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-07-21 · updated 2026-06-17
• Weakness: CWE-125

Description

Lua through 5.4.0 mishandles the interaction between stack resizes and garbage collection, leading to a heap-based buffer overflow, heap-based buffer over-read, or use-after-free.

Affected products

• Lua: 5.4.0

References

• http://lua-users.org/lists/lua-l/2020-07/msg00053.html
• http://lua-users.org/lists/lua-l/2020-07/msg00054.html
• http://lua-users.org/lists/lua-l/2020-07/msg00071.html
• http://lua-users.org/lists/lua-l/2020-07/msg00079.html
• https://github.com/lua/lua/commit/6298903e35217ab69c279056f925fb72900ce0b7
• https://github.com/lua/lua/commit/eb41999461b6f428186c55abd95f4ce1a76217d5
• http://lua-users.org/lists/lua-l/2020-07/msg00053.html
• http://lua-users.org/lists/lua-l/2020-07/msg00054.html
• http://lua-users.org/lists/lua-l/2020-07/msg00071.html
• http://lua-users.org/lists/lua-l/2020-07/msg00079.html
• https://github.com/lua/lua/commit/6298903e35217ab69c279056f925fb72900ce0b7
• https://github.com/lua/lua/commit/eb41999461b6f428186c55abd95f4ce1a76217d5

Get alerted when CVE-2020-15888 or the next vulnerability affects your stack