CVE-2021-42850
8.8 · HIGHOverview
CVE-2021-42850 is a high-severity vulnerability affecting lenovo a1_firmware. It was published on May 18, 2022 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
A weak default administrator password for the web interface and serial port was reported in some Lenovo Personal Cloud Storage devices that could allow unauthorized device access to an attacker with physical or local network access.
Remediation
Check the references section for vendor advisories and patches from lenovo. Update a1_firmware 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 |
|---|---|---|---|
| lenovo | a1_firmware | >= 0, < 5.3.6.a1 | Affected |
| lenovo | t1_firmware | >= 0, < 5.3.6.t1 | Affected |
| lenovo | x1_firmware | >= 0, < 5.3.8.x1 | Affected |
| lenovo | t2_firmware | >= 0, < 5.3.8.t2 | Affected |
| lenovo | t2pro_firmware | >= 0, < 5.3.7.t2-pro | Affected |
Frequently Asked Questions
What is CVE-2021-42850?
CVE-2021-42850 is a high-severity vulnerability affecting lenovo a1_firmware. It was published on May 18, 2022 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2021-42850?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-42850?
Check the references section for vendor advisories and patches from lenovo. Update a1_firmware 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-2021-42850?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-42850 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.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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