MEDIUMcrates.io →
Wasmtime CLI is vulnerable to host panic through its fd_renumber function
Wasmtime CLI is vulnerable to host panic through its fd_renumber function
Affected packages
- wasmtime
- wasmtime-wasi
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-fm79-3f68-h2fc
- https://nvd.nist.gov/vuln/detail/CVE-2025-53901
- https://github.com/bytecodealliance/wasmtime/pull/11277
- https://github.com/bytecodealliance/wasmtime/pull/11278
- https://github.com/bytecodealliance/wasmtime/pull/11279
- https://github.com/bytecodealliance/wasmtime/pull/11281
- https://docs.wasmtime.dev/security-what-is-considered-a-security-vulnerability.html
- https://docs.wasmtime.dev/stability-release.html
- https://github.com/WebAssembly/WASI/blob/e1aa1cae4dda4c1f70f23fe11e922aae92f240a8/legacy/preview1/witx/wasi_snapshot_preview1.witx#L245-L260
- https://github.com/bytecodealliance/wasmtime
- https://github.com/bytecodealliance/wasmtime/blob/037a6edadbc225decbea00a551aabf04203717d9/crates/wasi/src/preview1.rs#L1824-L1836
- https://rustsec.org/advisories/RUSTSEC-2025-0046.html
Structured record: https://osv.dev/vulnerability/GHSA-fm79-3f68-h2fc
Recommended response stack
Some links are affiliate links — HackTribune may earn a commission at no extra cost to you.
Get incidents like this as alerts for your stack.
Join the beta