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Buffer overflow in the vararg functions in ldo.c in Lua 5.1 through 5.2.x before 5.2.3 allows context-dependent attackers to cause a denial of service (crash) via a small number of arguments to a function with a large number of fixed arguments.

🗓️ 04 Sep 2025 04:01:20Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 2 Views

Buffer overflow in Lua ldo.c vararg functions (5.1–5.2.x before 5.2.3) enables denial of service.

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18 Feb 2026 22:31Current
7High risk
Vulners AI Score7
CVSS 25
EPSS0.10626
2