CVE-2021-21777
Last modified
CVE-2021-21777 is a critical-severity vulnerability rated 10/10 on the CVSS scale. An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted network request can lead to an out-of-bounds read.. EPSS estimates a 1.67% chance of exploitation in the next 30 days.
Description
An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted network request can lead to an out-of-bounds read.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Opener Project | Opener | 2.3 |
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1234Exploit, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1234Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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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.
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