What’s Vulnerable › Vulnerabilities
CVE-2021-20698
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-06-07 · updated 2026-06-17
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 and prior to it, C431 R2.000 and prior to it) allows an attacker to obtain root privileges and execute remote code by sending unintended parameters that contain specific characters in http request.
Affected products
- Sharp-Nec-Displays C431 Firmware: through r2.000
- Sharp-Nec-Displays C501 Firmware: through r2.000
- Sharp-Nec-Displays C551 Firmware: through r2.000
- Sharp-Nec-Displays C651Q Firmware: through r2.000
- Sharp-Nec-Displays C751Q Firmware: through r2.000
- Sharp-Nec-Displays C861Q Firmware: through r2.000
- Sharp-Nec-Displays C981Q Firmware: through r2.000
- Sharp-Nec-Displays P404 Firmware: through r3.201
- Sharp-Nec-Displays P484 Firmware: through r3.201
- Sharp-Nec-Displays P554 Firmware: through r3.201
- Sharp-Nec-Displays P654Q Firmware: through r2.000
- Sharp-Nec-Displays P754Q Firmware: through r2.000
- Sharp-Nec-Displays Un462A Firmware: through r1.300
- Sharp-Nec-Displays Un462Va Firmware: through r1.300
- Sharp-Nec-Displays Un492S Firmware: through r1.300
- Sharp-Nec-Displays Un492Vs Firmware: through r1.300
- Sharp-Nec-Displays Un552 Firmware: through r1.300
- Sharp-Nec-Displays Un552A Firmware: through r1.300
- Sharp-Nec-Displays Un552S Firmware: through r1.300
- Sharp-Nec-Displays Un552V Firmware: through r1.300
- Sharp-Nec-Displays Un552Vs Firmware: through r1.300
- Sharp-Nec-Displays Ux552 Firmware: through r1.300
- Sharp-Nec-Displays Ux552S Firmware: through r1.300
- Sharp-Nec-Displays V404-T Firmware: through r3.201
- Sharp-Nec-Displays V404 Firmware: through r3.201
- Sharp-Nec-Displays V484-T Firmware: through r3.201
- Sharp-Nec-Displays V484 Firmware: through r3.201
- Sharp-Nec-Displays V554-T Firmware: through r3.201
- Sharp-Nec-Displays V554 Firmware: through r3.201
- Sharp-Nec-Displays V554Q Firmware: through r2.000
References
- https://www.sharp-nec-displays.com/global/support/info/A5-1_vulnerability.html
- https://www.sharp-nec-displays.com/global/support/info/A5-1_vulnerability.html
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