CVE Explorer
CVE-2025-64345
Wasmtime is a runtime for WebAssembly. Prior to version 38.0.4, 37.0.3, 36.0.3, and 24.0.5, Wasmtime's Rust embedder API contains an unsound interaction where a WebAssembly shared linear memory could be viewed as a type which provides safe access to the host (Rust) to the contents of the linear memory. This is not sound for shared linear memories, which could be modified in parallel, and this could lead to a data race in the host. Patch releases have been issued for all supported versions of Was
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"wasmtime","vendor":"bytecodealliance","versions":[{"status":"affected","version":">= 38.0.1, < 38.0.4"},{"status":"affected","version":">= 37.0.0, < 37.0.3"},{"status":"affected","version":">= 26.0.0, < 36.0.3"},{"status":"affected","version":"< 24.0.5"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:a2d25874fdfb72b71be37afbab094236468043b42cf67094e70a461a36e57bac · sha256:c29899e7f4f23489… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":1.8,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:a2d25874fdfb72b71be37afbab094236468043b42cf67094e70a461a36e57bac · sha256:c29899e7f4f23489… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-362","description":"CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:a2d25874fdfb72b71be37afbab094236468043b42cf67094e70a461a36e57bac · sha256:c29899e7f4f23489… · /containers/cna/problemTypes/0/descriptions/0
Source references
6 source assertions{"name":"https://docs.rs/wasmtime/latest/wasmtime/struct.Memory.html#method.new","tags":["x_refsource_MISC"],"url":"https://docs.rs/wasmtime/latest/wasmtime/struct.Memory.html#method.new"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a2d25874fdfb72b71be37afbab094236468043b42cf67094e70a461a36e57bac · sha256:c29899e7f4f23489… · /containers/cna/references/2
{"name":"https://docs.rs/wasmtime/latest/wasmtime/struct.SharedMemory.html#method.new","tags":["x_refsource_MISC"],"url":"https://docs.rs/wasmtime/latest/wasmtime/struct.SharedMemory.html#method.new"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a2d25874fdfb72b71be37afbab094236468043b42cf67094e70a461a36e57bac · sha256:c29899e7f4f23489… · /containers/cna/references/3
{"name":"https://docs.wasmtime.dev/stability-release.html","tags":["x_refsource_MISC"],"url":"https://docs.wasmtime.dev/stability-release.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a2d25874fdfb72b71be37afbab094236468043b42cf67094e70a461a36e57bac · sha256:c29899e7f4f23489… · /containers/cna/references/4
{"name":"https://github.com/bytecodealliance/wasmtime/commit/9ebb6934f00d58b92fb68ed0e0b16c0ae828ca10","tags":["x_refsource_MISC"],"url":"https://github.com/bytecodealliance/wasmtime/commit/9ebb6934f00d58b92fb68ed0e0b16c0ae828ca10"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a2d25874fdfb72b71be37afbab094236468043b42cf67094e70a461a36e57bac · sha256:c29899e7f4f23489… · /containers/cna/references/1
{"name":"https://github.com/bytecodealliance/wasmtime/releases/tag/v38.0.4","tags":["x_refsource_MISC"],"url":"https://github.com/bytecodealliance/wasmtime/releases/tag/v38.0.4"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a2d25874fdfb72b71be37afbab094236468043b42cf67094e70a461a36e57bac · sha256:c29899e7f4f23489… · /containers/cna/references/5
{"name":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hc7m-r6v8-hg9q","tags":["x_refsource_CONFIRM"],"url":"https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hc7m-r6v8-hg9q"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a2d25874fdfb72b71be37afbab094236468043b42cf67094e70a461a36e57bac · sha256:c29899e7f4f23489… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.