Heap-based buffer overflow in ICS-CERT WECON LeviStudioU
Priority LOW 38CWE-122Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.
Summary
Several heap-based buffer overflow vulnerabilities in WECON LeviStudioU version 1.8.56 and prior have been identified, which may allow arbitrary code execution. Mat Powell, Ziad Badawi, and Natnael Samson working with Trend Micro's Zero Day Initiative, reported these vulnerabilities to NCCIC.
Why it matters now
EPSS 0.02109 81st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ICS-CERT | WECON LeviStudioU | LeviStudioU Versions 1.8.56 and prior | — | No fix listed | CNA |
- WECON LeviStudioU VendorICS-CERT Affected LeviStudioU Versions 1.8.56 and prior Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:we-con:levistudiou:*:*:*:*:*:*:*:* | up to 1.8.56 | Vulnerable | WECON Technology Co., Ltd. |
- cpe:2.3:a:we-con:levistudiou:*:*:*:*:*:*:*:* Versions up to 1.8.56 Vulnerable ·WECON Technology Co., Ltd.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-6539
- 2026-10-03 Alias added: GHSA-3qfx-cxcm-pc2c
References
More WECON Technology Co., Ltd. Levistudiou vulnerabilities
- TI-2020-12772 Stack-based buffer overflow in LeviStudioU CVSS 3.1HIGH 7.8
- TI-2021-05929 Stack-based buffer overflow in WECON LeviStudioU CVSS 3.1HIGH 7.8
- TI-2021-05938 Heap-based buffer overflow in WECON LeviStudioU CVSS 3.1HIGH 7.8
- TI-2018-07495 Heap-based buffer overflow in WECON Technology Co., Ltd. LeviStudioU CVSS 3.1HIGH 8.8
- TI-2018-07491 Stack-based buffer overflow in WECON Technology Co., Ltd. LeviStudioU CVSS 3.1HIGH 8.8
- TI-2018-07503 XML external entity injection in WECON Technology Co., Ltd. LeviStudioU CVSS 3.0HIGH 8.8
Sources
- CVE-2019-6539 · CVE Program
- CVE-2019-6539 · NVD
- FIRST EPSS
- GHSA-3qfx-cxcm-pc2c · GitHub Advisory Database · CC BY 4.0
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