CVE-2021-41551
MEDIUMCVSS 4.9/10EPSS 1.27%
Last modified
CVE-2021-41551 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. Leostream Connection Broker 9.0.40.17 allows administrators to conduct directory traversal attacks by uploading z ZIP file that contains a symbolic link.. EPSS estimates a 1.27% chance of exploitation in the next 30 days.
Description
Leostream Connection Broker 9.0.40.17 allows administrators to conduct directory traversal attacks by uploading z ZIP file that contains a symbolic link.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Leostream | Connection Broker | 9.0.40.17 |
References
- https://leostream.com/wp-content/uploads/2018/11/Leostream_release_notes.pdfRelease Notes, Vendor Advisory
- https://www.leostream.com/resource/leostream-connection-broker-9-0/Release Notes, Vendor Advisory
- https://leostream.com/wp-content/uploads/2018/11/Leostream_release_notes.pdfRelease Notes, Vendor Advisory
- https://www.leostream.com/resource/leostream-connection-broker-9-0/Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-41551?
Leostream Connection Broker 9.0.40.17 allows administrators to conduct directory traversal attacks by uploading z ZIP file that contains a symbolic link.
How severe is CVE-2021-41551?
CVE-2021-41551 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 1.27% probability of exploitation in the next 30 days.
How do I fix CVE-2021-41551?
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-2021-41551?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST