AEGLIX vulnerability intelligence
CVE-2026-34942
MEDIUM · CVSS 5.9 · Analyzed
Published: 2026-04-09 · Updated: 2026-10-26 · Source: NVD
Stored catalog record
Source record retrieved 2026-10-28T10:18:42.229431+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.
Vulnerability overview
Wasmtime is a runtime for WebAssembly. Prior to 24.0.7, 36.0.7, 42.0.2, and 43.0.1, Wasmtime's implementation of transcoding strings into the Component Model's utf16 or latin1+utf16 encodings improperly verified the alignment of reallocated strings. This meant that unaligned pointers could be passed to the host for transcoding which would trigger a host panic. This panic is possible to trigger from malicious guests which transfer very specific strings across components with specific addresses. Host panics are considered a DoS vector in Wasmtime as the panic conditions are controlled by the guest in this situation. This vulnerability is fixed in 24.0.7, 36.0.7, 42.0.2, and 43.0.1.
Patch review priority
Assess exposure and vendor guidance
- No higher-priority signal is available in the current stored evidence.
FIRST EPSS: 0.35% · percentile 29.0 · score date 2026-10-27.
EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗
Severity and scoring
- CVSS score
- 5.9 · MEDIUM
- CVSS version
- 4.0
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/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
- Weaknesses
- CWE-129
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:*
Before (exclusive): 24.0.7
cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:*
From (inclusive): 25.0.0
Before (exclusive): 36.0.7
cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:*
From (inclusive): 37.0.0
Before (exclusive): 42.0.2
cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:*
From (inclusive): 43.0.0
Before (exclusive): 43.0.1
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.