How severe is CVE-2021-43002?

CVE-2021-43002 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-43002 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43002?

CVE-2021-43002 affects Amzetta Zportal Dvm Tools. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43002?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-43002 published?

CVE-2021-43002 was published on 2021-12-07 and last updated on 2026-06-17.

CVE-2021-43002

CVE-2021-43002 is a high-severity vulnerability in Amzetta Zportal Dvm Tools with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Amzetta Zportal Dvm Tools
Published: 2021-12-07
Last modified: 2026-06-17

Description

Amzetta zPortal DVM Tools is affected by Buffer Overflow. IOCTL Handler 0x22001B in the Amzetta zPortal DVM Tools <= v3.3.148.148 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.

Frequently asked questions

What is CVE-2021-43002?: Amzetta zPortal DVM Tools is affected by Buffer Overflow. IOCTL Handler 0x22001B in the Amzetta zPortal DVM Tools <= v3.3.148.148 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.
How severe is CVE-2021-43002?: CVE-2021-43002 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-43002 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43002?: CVE-2021-43002 affects Amzetta Zportal Dvm Tools. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43002?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-43002 published?: CVE-2021-43002 was published on 2021-12-07 and last updated on 2026-06-17.

References

https://www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/

Affected products (1)

cpe:2.3:a:amzetta:zportal_dvm_tools:*:*:*:*:*:*:*:*

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