CVE-2021-20699
9.8 · CRITICALOverview
CVE-2021-20699 is a critical-severity vulnerability affecting sharp-nec-displays un462a_firmware. It was published on June 7, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Sharp NEC Displays ((UN462A R1.300 and prior to it, UN462VA R1.300 and prior to it, UN492S R1.300 and prior to it, UN492VS R1.300 and prior to it, UN552A R1.300 and prior to it, UN552S R1.300 and prior to it, UN552VS R1.300 and prior to it, UN552 R1.300 and prior to it, UN552V R1.300 and prior to it, UX552S R1.300 and prior to it, UX552 R1.300 and prior to it, V864Q R2.000 and prior to it, C861Q R2.000 and prior to it, P754Q R2.000 and prior to it, V754Q R2.000 and prior to it, C751Q R2.000 and prior to it, V984Q R2.000 and prior to it, C981Q R2.000 and prior to it, P654Q R2.000 and prior to it, V654Q R2.000 and prior to it, C651Q R2.000 and prior to it, V554Q R2.000 and prior to it, P404 R3.200 and prior to it, P484 R3.200 and prior to it, P554 R3.200 and prior to it, V404 R3.200 and prior to it, V484 R3.200 and prior to it, V554 R3.200 and prior to it, V404-T R3.200 and prior to it, V484-T R3.200 and prior to it, V554-T R3.200 and prior to it, C501 R2.000 and prior to it, C551 R2.000
Remediation
Check the references section for vendor advisories and patches from sharp-nec-displays. Update un462a_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 |
|---|---|---|---|
| sharp-nec-displays | un462a_firmware | 0 | Affected |
| sharp-nec-displays | un462va_firmware | 0 | Affected |
| sharp-nec-displays | un492s_firmware | 0 | Affected |
| sharp-nec-displays | un492vs_firmware | 0 | Affected |
| sharp-nec-displays | un552a_firmware | 0 | Affected |
| sharp-nec-displays | un552s_firmware | 0 | Affected |
| sharp-nec-displays | un552vs_firmware | 0 | Affected |
| sharp-nec-displays | un552_firmware | 0 | Affected |
| sharp-nec-displays | un552v_firmware | 0 | Affected |
| sharp-nec-displays | ux552s_firmware | 0 | Affected |
Frequently Asked Questions
What is CVE-2021-20699?
CVE-2021-20699 is a critical-severity vulnerability affecting sharp-nec-displays un462a_firmware. It was published on June 7, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2021-20699?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-20699?
Check the references section for vendor advisories and patches from sharp-nec-displays. Update un462a_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-2021-20699?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-20699 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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