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TI-2021-18288 Aliases CVE-2021-41551GHSA-3r32-ggmf-p3vp

Leostream Connection Broker 9.0.40.17 allows administrators to conduct directory…

Priority LOW 25CWE-59Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-59 and the CVSS impact.

Summary

Leostream Connection Broker 9.0.40.17 allows administrators to conduct directory traversal attacks by uploading z ZIP file that contains a symbolic link.

Why it matters now

EPSS 0.01274 70th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:leostream:connection_broker:9.0.40.17:*:*:*:*:*:*:*9.0.40.17VulnerableLeostream
  • cpe:2.3:a:leostream:connection_broker:9.0.40.17:*:*:*:*:*:*:* Versions 9.0.40.17 Vulnerable ·Leostream

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-41551
  2. 2026-10-03 Alias added: GHSA-3r32-ggmf-p3vp

References

Advisory 2

  • TI-2021-15837 LeoStream Connection Broker 9.x before 9.0.34.3 allows Unauthenticated Reflected XSS via… CVSS 3.1MEDIUM 6.1
  • TI-2020-16205 Leostream Connection Broker 8.2.x is affected by stored XSS. CVSS 3.1CRITICAL 9.6
  • TI-2018-13327 The Leostream Agent before Build 7.0.1.0 when used with Leostream Connection Broker… CVSS 3.0HIGH 7.5
  • TI-2021-18287 Leostream Connection Broker 9.0.40.17 allows administrator to upload and execute Perl code. CVSS 3.1HIGH 7.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences