CVE-2021-42059
MEDIUMCVSS 6.7/10EPSS 0.34%
Last modified
CVE-2021-42059 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.08.41, Kernel 5.1 before 05.16.41, Kernel 5.2 before 05.26.41, Kernel 5.3 before 05.35.41, and Kernel 5.4 before 05.42.20. A stack-based buffer overflow leads toarbitrary code execution in UEFI DisplayTypeDxe DXE driver.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.
Description
An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.08.41, Kernel 5.1 before 05.16.41, Kernel 5.2 before 05.26.41, Kernel 5.3 before 05.35.41, and Kernel 5.4 before 05.42.20. A stack-based buffer overflow leads toarbitrary code execution in UEFI DisplayTypeDxe DXE driver.
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Insyde | Insydeh2o | >= 5.0, < 5.08.41 |
| Insyde | Insydeh2o | >= 5.1, < 5.16.41 |
| Insyde | Insydeh2o | >= 5.2, < 5.26.41 |
| Insyde | Insydeh2o | >= 5.3, < 5.35.41 |
| Insyde | Insydeh2o | >= 5.4, < 5.42.20 |
| Siemens | Simatic Field Pg M5 Firmware | All versions |
| Siemens | Simatic Field Pg M6 Firmware | All versions |
| Siemens | Simatic Ipc127e Firmware | All versions |
| Siemens | Simatic Ipc227g Firmware | All versions |
| Siemens | Simatic Ipc277g Firmware | All versions |
| Siemens | Simatic Ipc327g Firmware | All versions |
| Siemens | Simatic Ipc377g Firmware | All versions |
| Siemens | Simatic Ipc427e Firmware | All versions |
| Siemens | Simatic Ipc477e Firmware | All versions |
| Siemens | Simatic Ipc627e Firmware | All versions |
| Siemens | Simatic Ipc647e Firmware | All versions |
| Siemens | Simatic Ipc677e Firmware | All versions |
| Siemens | Simatic Ipc847e Firmware | All versions |
| Siemens | Simatic Itp1000 Firmware | All versions |
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfThird Party Advisory
- https://security.netapp.com/advisory/ntap-20220216-0008/Third Party Advisory
- https://www.insyde.com/security-pledgeVendor Advisory
- https://www.insyde.com/security-pledge/SA-2022006Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfThird Party Advisory
- https://security.netapp.com/advisory/ntap-20220216-0008/Third Party Advisory
- https://www.insyde.com/security-pledgeVendor Advisory
- https://www.insyde.com/security-pledge/SA-2022006Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-42059?
An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.08.41, Kernel 5.1 before 05.16.41, Kernel 5.2 before 05.26.41, Kernel 5.3 before 05.35.41, and Kernel 5.4 before 05.42.20. A stack-based buffer overflow leads toarbitrary code execution in UEFI DisplayTypeDxe DXE driver.
How severe is CVE-2021-42059?
CVE-2021-42059 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.
How do I fix CVE-2021-42059?
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.
Related CVEs from 2021
- CVE-2021-42052IPESA e-Flow 3.3.6 allows path traversal for reading any fil…7.5
- CVE-2021-42053The Unicorn framework through 0.35.3 for Django allows XSS v…5.4
- CVE-2021-42054ACCEL-PPP 1.12.0 has an out-of-bounds read in triton_context…7.5
- CVE-2021-42055ASUSTek ZenBook Pro Due 15 UX582 laptop firmware through 203…6.8
- CVE-2021-42056Thales Safenet Authentication Client (SAC) for Linux and Win…6.7
- CVE-2021-42057Obsidian Dataview through 0.4.12-hotfix1 allows eval injecti…7.8
- CVE-2021-4206A flaw was found in the QXL display device emulation in QEMU…8.2
- CVE-2021-42060An issue was discovered in Insyde InsydeH2O Kernel 5.0 throu…8.2
- CVE-2021-42061SAP BusinessObjects Business Intelligence Platform (Web Inte…5.4
- CVE-2021-42062SAP ERP HCM Portugal does not perform necessary authorizatio…4.3
- CVE-2021-42063A security vulnerability has been discovered in the SAP Know…6.1
- CVE-2021-42064If configured to use an Oracle database and if a query is cr…9.8
Are you affected by CVE-2021-42059?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST