Out-of-bounds read in wasm-micro-runtime - CVE-2025-64713
Published: April 24, 2026
Vulnerability identifier: #VU127501
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-64713
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Bytecode Alliance
Affected software:
wasm-micro-runtime
wasm-micro-runtime
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds read in frame_offset_bottom array in fast interpreter mode when loading WASM bytecode containing a GET_GLOBAL(I32) opcode immediately followed by an if opcode. A remote attacker can load a specially crafted WASM module to cause a denial of service.
Exploitation requires fast interpreter mode to be enabled.
How to mitigate CVE-2025-64713
Install security update from vendor's website.