wasm3 NewCodePage memory leak
Priority MEDIUM 55CWE-401Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-401.
Summary
A vulnerability has been found in wasm3 up to 0.5.0. The affected element is the function NewCodePage. The manipulation leads to memory leak. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. Unfortunately, the project has no active maintainer at the moment.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00187 8th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | wasm3 | 0.1; 0.2; 0.3; 0.4; 0.5.0 | — | No fix listed | CNA |
- wasm3 Vendor— Affected 0.1; 0.2; 0.3; 0.4; 0.5.0 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:wasm3_project:wasm3:*:*:*:*:*:*:*:* | up to 0.5.0 | Vulnerable | Wasm3 Project |
- cpe:2.3:a:wasm3_project:wasm3:*:*:*:*:*:*:*:* Versions up to 0.5.0 Vulnerable ·Wasm3 Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-15572
- 2026-10-03 Alias added: GHSA-77xv-jxjw-v7mw
References
More Wasm3 Project Wasm3 vulnerabilities
- TI-2024-22659 wasm3 v0.5.0 was discovered to contain a global buffer overflow which leads to… CVSS 3.1HIGH 7.5
- TI-2024-18299 wasm3 139076a contains a Use-After-Free in ForEachModule. CVSS 3.1HIGH 8.4
- TI-2024-18298 wasm3 139076a contains memory leaks in Read_utf8. CVSS 3.1HIGH 8.4
- TI-2024-18297 wasm3 139076a suffers from Invalid Memory Read, leading to DoS and potential Code Execution. CVSS 3.1HIGH 8.4
- TI-2024-18296 wasm3 139076a is vulnerable to Denial of Service (DoS). CVSS 3.1HIGH 7.5
- TI-2022-18927 WASM3 v0.5.0 was discovered to contain a segmentation fault via the component… CVSS 3.1HIGH 7.5
Sources
- CVE-2025-15572 · CVE Program
- CVE-2025-15572 · NVD
- FIRST EPSS
- GHSA-77xv-jxjw-v7mw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences