CVE-2021-20698

CRITICAL
9.8
CVSS Score
Published: June 7, 2021 at 01:25 PM UTC
Updated: June 17, 2026 at 03:34 AM UTC
102 products affected across 2 vendorsUX552 FirmwareV554-T FirmwareV404 Firmware

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Severity
CRITICAL9.8
Exploit prediction
EPSS 1%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ r2.000
sharp-nec-displays-c431 (same device)
v ≤ r2.000
sharp-nec-displays-c501 (same device)
v ≤ r2.000
sharp-nec-displays-c551 (same device)
v ≤ r2.000
sharp-nec-displays-c651q (same device)
v ≤ r2.000
sharp-nec-displays-c751q (same device)
v ≤ r2.000
sharp-nec-displays-c861q (same device)
v ≤ r2.000
sharp-nec-displays-c981q (same device)
v ≤ r3.201
sharp-nec-displays-p404 (same device)
v ≤ r3.201
sharp-nec-displays-p484 (same device)
v ≤ r3.201
sharp-nec-displays-p554 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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