SecuriTricks - CVE-2025-62711

Description

Wasmtime is a runtime for WebAssembly. In versions from 38.0.0 to before 38.0.3, the implementation of component-model related host-to-wasm trampolines in Wasmtime contained a bug where it's possible to carefully craft a component, which when called in a specific way, would crash the host with a segfault or assert failure. Wasmtime 38.0.3 has been released and is patched to fix this issue. There are no workarounds.

Product(s) Impacted

Vendor	Product	Versions
Bytecodealliance	Wasmtime	38.0.0-38.0.2

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-755

Improper Handling of Exceptional Conditions

The product does not handle or incorrectly handles an exceptional condition.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	bytecodealliance	wasmtime	38.0.0-38.0.2	/	/	/	/	/	/	/

References

https://github.com/bytecodealliance/wasmtime/commit/192f2fcdadfec9d0cf6b58548a85a7307450cbf5

https://github.com/bytecodealliance/wasmtime/pull/11592

https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-4h67-722j-5pmc

CVSS Score

2.1 / 10

CVSS Data - 4.0

Attack Vector: NETWORK
Attack Complexity: HIGH
Attack Requirements: PRESENT
Privileges Required: LOW
User Interaction: PASSIVE
Scope:
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: LOW
Exploit Maturity: NOT_DEFINED

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/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

View Vector String

Timeline

Published: Oct. 24, 2025, 10:15 p.m.
Last Modified: Oct. 24, 2025, 10:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security-advisories@github.com

CVE-2025-62711