Buffer overflow in Luajit
CVE-2024-25176
LuaJIT through 2.1 and OpenRusty luajit2 before v2.1-20240626 have a stack-buffer-overflow in lj_strfmt_wfnum in lj_strfmt_num.c.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (44.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.001
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/LuaJIT/LuaJIT/commit/343ce0edaf3906a62022936175b2f5410024cbfc (Patch)
- github.com/LuaJIT/LuaJIT/issues/1149 (Exploit, Issue Tracking)
- gist.github.com/pwnhacker0x18/cd75d01fc7c9b6c85c183fbe5353d276 (Third Party Advisory)
- github.com/openresty/luajit2/commit/343ce0edaf3906a62022936175b2f5410024cbfc
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-25176?
- CVE-2024-25176 is a critical-severity vulnerability in Luajit, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-07-07.
- How severe is CVE-2024-25176?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2024-25176 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.