CVE-2026-21718
Last modified
CVE-2026-21718 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An authentication bypass vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, enabling any attackers to bypass the authentication requirement and achieve pre-authenticated code execution on the system.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
An authentication bypass vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, enabling any attackers to bypass the authentication requirement and achieve pre-authenticated code execution on the system.
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 |
|---|---|---|
| Copeland | Xweb 300d Pro Firmware | <= 1.12.1 |
| Copeland | Xweb 500d Pro Firmware | <= 1.12.1 |
| Copeland | Xweb 500b Pro Firmware | <= 1.12.1 |
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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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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