CVE-2020-10638
CRITICALCVSS 9.8/10EPSS 7.06%
Last modified
CVE-2020-10638 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple heap-based buffer overflow vulnerabilities exist caused by a lack of proper validation of the length of user-supplied data, which may allow remote code execution.. EPSS estimates a 7.06% chance of exploitation in the next 30 days.
Description
Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple heap-based buffer overflow vulnerabilities exist caused by a lack of proper validation of the length of user-supplied data, which may allow remote code execution.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Advantech | Webaccess | <= 8.4.4 |
| Advantech | Webaccess | 9.0.0 |
References
- https://www.us-cert.gov/ics/advisories/icsa-20-128-01Third Party Advisory, US Government Resource
- https://www.zerodayinitiative.com/advisories/ZDI-20-593/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-599/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-600/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-603/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-616/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-621/Third Party Advisory, VDB Entry
- https://www.us-cert.gov/ics/advisories/icsa-20-128-01Third Party Advisory, US Government Resource
- https://www.zerodayinitiative.com/advisories/ZDI-20-593/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-599/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-600/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-603/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-616/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-621/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-10638?
Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple heap-based buffer overflow vulnerabilities exist caused by a lack of proper validation of the length of user-supplied data, which may allow remote code execution.
How severe is CVE-2020-10638?
CVE-2020-10638 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 7.06% probability of exploitation in the next 30 days.
How do I fix CVE-2020-10638?
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.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-10638?
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Scan your code nowSource: NVD / NIST