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TI-2021-19073 Aliases CVE-2021-43000GHSA-q5c9-9c6m-cvqq

Amzetta zPortal Windows zClient is affected by Buffer Overflow.

Priority LOW 39CWE-120Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

Amzetta zPortal Windows zClient is affected by Buffer Overflow. IOCTL Handler 0x22001B in the Amzetta zPortal Windows zClient <= v3.2.8180.148 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

Why it matters now

EPSS 0.00478 41st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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:amzetta:zportal_windows_zclient:*:*:*:*:*:*:*:*up to 3.2.8180.148VulnerableAmzetta
  • cpe:2.3:a:amzetta:zportal_windows_zclient:*:*:*:*:*:*:*:* Versions up to 3.2.8180.148 Vulnerable ·Amzetta

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-43000
  2. 2026-10-03 Alias added: GHSA-q5c9-9c6m-cvqq

References

Exploit 1

  • TI-2021-19075 Amzetta zPortal Windows zClient is affected by Integer Overflow. CVSS 3.1HIGH 8.8

Sources

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