CVE-2022-34303
6.7 · MEDIUMOverview
CVE-2022-34303 is a medium-severity vulnerability affecting eurosoft-uk uefi_bootloader. It was published on August 26, 2022 and has a CVSS 3.1 base score of 6.7 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
A flaw was found in Eurosoft bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use with this bootloader. Access to the EFI System Partition is required for booting using external media.
Remediation
Check the references section for vendor advisories and patches from eurosoft-uk. Update uefi_bootloader to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| eurosoft-uk | uefi_bootloader | >= 0, < 2022-06-01 | Affected |
References
Frequently Asked Questions
What is CVE-2022-34303?
CVE-2022-34303 is a medium-severity vulnerability affecting eurosoft-uk uefi_bootloader. It was published on August 26, 2022 and has a CVSS 3.1 base score of 6.7 (MEDIUM).
How severe is CVE-2022-34303?
This vulnerability has a CVSS 3.1 base score of 6.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2022-34303?
Check the references section for vendor advisories and patches from eurosoft-uk. Update uefi_bootloader to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2022-34303?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-34303 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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