Wasmtime 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a memory misalignment flaw in VMContext layout that causes undefined behavior when…
Wasmtime 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a memory misalignment flaw in VMContext layout that causes undefined behavior when modules contain an odd number of exception tags. A WebAssembly module with an odd tag count misaligns subsequent host fields in embedders with exceptions enabled, although no exploitation path is currently known.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Bytecodealliance
- Product
- wasmtime
- CVSS v3.1
- 2.6 AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
- Weakness
- CWE-758
- NVD status
- Deferred
Why it ranks 0 (Routine)
- No intrinsic risk signals yet; rank reflects source class and recency only.
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.