← volver
CVE-2025-66627

Wasmi's Linear Memory has a Critical Use After Free Vulnerability

CVSS 8.4 HIGHEPSS 0.1%CWE-416
Vexday Risk Score
21Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 8.4EPSS 0.1%KEV nãoPoC Nuclei Metasploit Patch
Ciclo de vida
09 dic 2025Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
Wasmi is a WebAssembly interpreter focused on constrained and embedded systems. In versions 0.41.0, 0.41.1, 0.42.0 through 0.47.1, 0.50.0 through 0.51.2 and 1.0.0, Wasmi's linear memory implementation leads to a Use After Free vulnerability, triggered by a WebAssembly module under certain memory growth conditions. This issue potentially leads to memory corruption, information disclosure, or code execution. This issue is fixed in versions 0.41.2, 0.47.1, 0.51.3 and 1.0.1. To workaround this issue, consider limiting the maximum linear memory sizes where feasible.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
wasmi-labs · wasmi