Dashboard / CVE-2026-115393

CVE-2026-115393

LOW
INFO Priority: 0.00 BB Relevance: 2/100
Published: 2026-10-22 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Description

Wasmtime before 24.0.12, 25.0.0 before 36.0.13, 37.0.0 before 46.0.2, and 47.0.0 before 47.0.3 contains a type confusion vulnerability because several Store APIs fail to validate that objects belong to the Store's Engine. Embedders mixing objects between Engines via Instance::new, StructRefPre::new, or Tag::new can trigger trampoline signature mismatches causing out-of-bounds stack writes, GC heap corruption, or panics.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
bytecodealliance wasmtime 0 < 24.0.12

References & Advisories (2)

Bug Bounty Relevance

2 / 100

CVSS Score

1.0 / 10.0 v4.0
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/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

EPSS — Exploitation Probability

0.09%
Raw Score 0.000920
Percentile 0.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00092
2026-10-28
0.00092

Intelligence Sources

mitre ref →
nvd ref →

External Links