CVE-2026-115384: Wasmtime 39.0.0 before 48.0.4 and 49.0.0 before 49.0.2 Stack Buffer Overflow
Wasmtime 39.0.0 before 48.0.4 and 49.0.0 before 49.0.2 Stack Buffer Overflow
- Published by source
- 2026-10-13
- First seen by Reality Radar
- 2026-10-27
- Last verified
- 2026-10-27
Affected
- Manufacturer
- Microsoft
- Products
- azl3 cloud-hypervisor 52.0.152-1 on Azure Linux 3.0 azl3 openvmm 0.1.0-1 on Azure Linux 3.0 azl3 rust 1.75.0-31 on Azure Linux 3.0 azl3 rust 1.96.1-2 on Azure Linux 3.0
- CPE
- cpe:2.3:a:microsoft:azl3_cloud-hypervisor_52.0.152-1:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:azl3_openvmm_0.1.0-1:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:azl3_rust_1.75.0-31:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:azl3_rust_1.96.1-2:*:*:*:*:*:*:*:*
Whether your exact unit is affected depends on the model, serial number and region in the official notice.
What the official notice says
Risk: Critical
Remedy / actions:
- Install the latest Microsoft security update
Is this affecting you?
Add what you own or use and Reality Radar will tell you when official changes match it — with evidence and next steps.
Sources
- Microsoft Security Update Guide (MSRC) Tier A · official published 2026-10-13
Evidence ledger
Every piece of evidence we store is appended to a public hash chain, so later edits are detectable. Anyone can re-verify it.
| Entry | Kind | Observed | Evidence hash | Entry hash |
|---|---|---|---|---|
| #2309 | new | 2026-10-27 | 16168a1659f5…d401f4 | c7c801091170…408188 |
Chain head: #2378 f9a9faa3c245…7cbb39