CVE-2020-5955
CRITICALCVSS 9.8/10EPSS 1.37%
Last modified
CVE-2020-5955 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in Int15MicrocodeSmm in Insyde InsydeH2O before 2021-10-14 on Intel client chipsets. A caller may be able to escalate privileges.. EPSS estimates a 1.37% chance of exploitation in the next 30 days.
Description
An issue was discovered in Int15MicrocodeSmm in Insyde InsydeH2O before 2021-10-14 on Intel client chipsets. A caller may be able to escalate privileges.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Insyde | Insydeh2o Uefi Bios | < 05.32.30.0001 |
| Insyde | Insydeh2o Uefi Bios | < 05.41.35.0001 |
| Insyde | Insydeh2o Uefi Bios | < 05.42.11.0026 |
| Insyde | Insydeh2o Uefi Bios | < 05.04.21.0068 |
| Insyde | Insydeh2o Uefi Bios | < 05.42.09.0003 |
| Insyde | Insydeh2o Uefi Bios | < 05.21.51.0040 |
| Insyde | Insydeh2o Uefi Bios | < 05.34.09.0030 |
| Insyde | Insydeh2o Uefi Bios | < 05.32.47.0001 |
| Insyde | Insydeh2o Uefi Bios | < 05.23.45.0023 |
| Insyde | Insydeh2o Uefi Bios | < 05.21.43.0001 |
| Insyde | Insydeh2o Uefi Bios | < 05.23.04.0045 |
| Insyde | Insydeh2o Uefi Bios | < 05.11.26.0015 |
| Insyde | Insydeh2o Uefi Bios | < 05.12.09.0075 |
| Insyde | Insydeh2o Uefi Bios | < 05.10.48.0001 |
| Insyde | Insydeh2o Uefi Bios | < 05.05.39.0001 |
| Insyde | Insydeh2o Uefi Bios | < 05.04.15.0001 |
| Insyde | Insydeh2o Uefi Bios | < 05.23.27.0001 |
References
- https://security.netapp.com/advisory/ntap-20220223-0003/Third Party Advisory
- https://www.insyde.com/productsProduct, Vendor Advisory
- https://www.insyde.com/security-pledge/SA-2021002Vendor Advisory
- https://security.netapp.com/advisory/ntap-20220223-0003/Third Party Advisory
- https://www.insyde.com/productsProduct, Vendor Advisory
- https://www.insyde.com/security-pledge/SA-2021002Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-5955?
An issue was discovered in Int15MicrocodeSmm in Insyde InsydeH2O before 2021-10-14 on Intel client chipsets. A caller may be able to escalate privileges.
How severe is CVE-2020-5955?
CVE-2020-5955 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.37% probability of exploitation in the next 30 days.
How do I fix CVE-2020-5955?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-5955?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST