CVE-2021-20699: Sharp NEC Displays ((UN462A R1.300 and prior to it, UN462VA R1.300 and prior to it, UN492S R1.300 and prior to

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 i

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

• 2021-06-07 14:15 UTCPublished CVE record published
• 2026-06-17 03:34 UTCUpdated Record last modified

Quick answers

How do I fix CVE-2021-20699?

un462a firmware: upgrade to newer than r1.300; un462va firmware: upgrade to newer than r1.300; un492s firmware: upgrade to newer than r1.300. Exact commands for each OS are on this page.

Is CVE-2021-20699 being exploited?

CVE-2021-20699 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-20699 affect?

CVE-2021-20699 affects un462a firmware, un462va firmware, un492s firmware. Severity is critical (CVSS 9.8). 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,

How urgent is CVE-2021-20699?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

• CVE-2021-20698 CRITICAL 9.8 UPGRADE UPGRADE Sharp NEC Displays (UN462A R1.300 and prior to it, UN462VA R1.300 and prior to it, UN492S R1.300 and prior to

References

• NVD

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