CVE-2019-6321
CVE-2019-6321 is a high-severity vulnerability in Hp Z4 G4 Workstation Firmware with a CVSS 3.x base score of 7.2. 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-667.
Key facts
- Severity: High (CVSS 3.x base score 7.2)
- CVSS v2: 9.0
- EPSS exploit prediction: 1% (70th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-667
- Affected product: Hp Z4 G4 Workstation Firmware
- Published:
- Last modified:
Description
HP has identified a security vulnerability with some versions of Workstation BIOS (UEFI Firmware) where the runtime BIOS code could be tampered with if the TPM is disabled. This vulnerability relates to Workstations whose TPM is disabled by default.
Frequently asked questions
- What is CVE-2019-6321?
- HP has identified a security vulnerability with some versions of Workstation BIOS (UEFI Firmware) where the runtime BIOS code could be tampered with if the TPM is disabled. This vulnerability relates to Workstations whose TPM is disabled by default.
- How severe is CVE-2019-6321?
- CVE-2019-6321 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2019-6321 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-6321?
- CVE-2019-6321 primarily affects Hp Z4 G4 Workstation Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2019-6321?
- 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-2019-6321 published?
- CVE-2019-6321 was published on 2019-05-29 and last updated on 2026-06-17.
References
Affected products (8)
- cpe:2.3:o:hp:z4_g4_workstation_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:hp:z4_g4_core-x_workstation_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:hp:z6_g4_workstation_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:hp:z8_g4_workstation_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:hp:z4_g4_workstation_firmware:*:*:*:*:*:linux:*:*
- cpe:2.3:o:hp:z4_g4_core-x_workstation_firmware:*:*:*:*:*:linux:*:*
- cpe:2.3:o:hp:z6_g4_workstation_firmware:*:*:*:*:*:linux:*:*
- cpe:2.3:o:hp:z8_g4_workstation_firmware:*:*:*:*:*:linux:*:*
More vulnerabilities in Hp Z4 G4 Workstation Firmware
- CVE-2019-6322 — Medium (CVSS 6.8): HP has identified a security vulnerability with some versions of Workstation BIOS (UEFI Firmware) where the runtime…
All CVEs affecting Hp Z4 G4 Workstation Firmware →
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