CVE-2024-51745 describes a critical sandbox bypass vulnerability in Wasmtime, a WebAssembly runtime, affecting its Windows filesystem implementation. The flaw allows untrusted Wasm programs to access special device filenames using superscript digits (e.g., "COM¹"), bypassing the intended sandbox and gaining access to peripheral devices or mapped network resources. This vulnerability carries a CVSS score of 10.0 (CRITICAL) due to its network attack vector, low complexity, and high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion, but affected users are strongly advised to upgrade to patched Wasmtime versions 24.0.2, 25.0.3, or 26.0.1.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 24.0.2CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:* | ||
25.0.0CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:25.0.0:*:*:*:*:rust:*:* | ||
25.0.1CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:25.0.1:*:*:*:*:rust:*:* | ||
25.0.2CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:25.0.2:*:*:*:*:rust:*:* | ||
26.0.0CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:26.0.0:*:*:*:*:rust:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.