CVE-2021-23138
HIGHCVSS 7.8/10EPSS 9.29%
Last modified
CVE-2021-23138 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.. EPSS estimates a 9.29% chance of exploitation in the next 30 days.
Description
WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| We-Con | Levistudiou | <= 2019-09-21 |
References
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-03Third Party Advisory, US Government Resource
- https://www.zerodayinitiative.com/advisories/ZDI-22-129/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-131/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-133/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-134/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-135/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-136/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-137/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-138/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-139/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-140/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-141/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-142/Third Party Advisory, VDB Entry
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-03Third Party Advisory, US Government Resource
- https://www.zerodayinitiative.com/advisories/ZDI-22-129/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-131/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-133/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-134/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-135/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-136/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-137/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-138/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-139/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-140/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-141/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-142/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-23138?
WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.
How severe is CVE-2021-23138?
CVE-2021-23138 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 9.29% probability of exploitation in the next 30 days.
How do I fix CVE-2021-23138?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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