CVE-2021-3661
Last modified
CVE-2021-3661 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. A potential security vulnerability has been identified in certain HP Workstation BIOS (UEFI firmware) which may allow arbitrary code execution. HP is releasing firmware mitigations for the potential vulnerability.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
Description
A potential security vulnerability has been identified in certain HP Workstation BIOS (UEFI firmware) which may allow arbitrary code execution. HP is releasing firmware mitigations for the potential vulnerability.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hp | Z1 All-In-One G3 Firmware | 01.31 |
| Hp | Z2 Mini G3 Firmware | 01.83 |
| Hp | Z2 Mini G4 Firmware | 01.08.01 |
| Hp | Z2 Mini G5 Firmware | 01.03.00_rev_a |
| Hp | Z2 Small Form Factor G4 Firmware | 01.08.01 |
| Hp | Z2 Small Form Factor G5 Firmware | 01.03.00_rev_a |
| Hp | Z2 Small Form Factor G8 Firmware | 01.03.00_rev_a |
| Hp | Z2 Tower G4 Firmware | 01.08.01 |
| Hp | Z2 Tower G5 Firmware | 01.03.00_rev_a |
| Hp | Z2 Tower G8 Firmware | 01.03.00_rev_a |
| Hp | Z238 Microtower Firmware | 01.83 |
| Hp | Z240 Small Form Factor Firmware | 01.83 |
| Hp | Z240 Tower Firmware | 01.83 |
| Hp | Z4 G4 Firmware | 02.75 |
| Hp | Z440 Firmware | 2.58 |
| Hp | Z6 G4 Firmware | 02.75 |
| Hp | Z640 Firmware | 2.58 |
| Hp | Z8 G4 Firmware | 02.75 |
| Hp | Z840 Firmware | 2.58 |
| Hp | Zcentral 4r Firmware | 01.18 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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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.
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