CRITICALCVSS v3.1 9.9Vulnerability
CVE-2026-115384
Wasmtime 39.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains a stack buffer overflow vulnerability that allows malicious guests to write ~16KB to the native stack via unvalidated async callback result types. Attackers can supply components with mistyped component-model-async callback functions to overwrite return addresses, crashing the host or escaping the sandbox.
Properties
- Severity
- CRITICAL
- Nvd fetched at
- 2026-10-22T22:14:18.200859+00:00
- Cvss score
- 9.9
- Cvss severity
- CRITICAL
- Retrieved at
- 2026-10-22T22:16:40+00:00
- Score
- 9.9
- Last source
- NVD
- Cvss version
- 3.1
- Cve id
- CVE-2026-115384
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- First seen by Signal
- 2026-10-22T22:12:23+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Published at
- 2026-10-22T19:17:45.543
- Last modified
- 2026-10-22T19:17:45.653
Related Entities (1)
HAS_WEAKNESS (1)
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