SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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 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…

CRITICAL 9.8EPSS 1.66%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.66%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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 a buffer overflow and to execute remote code by sending long parameters that contains specific characters in http request.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.66% probability · 75th percentile
CISA KEV
Not listed
Weakness
CWE-77, CWE-120
Affected
sharp-nec-displays/un462a firmware · sharp-nec-displays/un462va firmware · sharp-nec-displays/un492s firmware · sharp-nec-displays/un492vs firmware · sharp-nec-displays/un552a firmware · sharp-nec-displays/un552s firmware · sharp-nec-displays/un552vs firmware · sharp-nec-displays/un552 firmware · sharp-nec-displays/un552v firmware · sharp-nec-displays/ux552s firmware · sharp-nec-displays/ux552 firmware · sharp-nec-displays/v864q firmware · sharp-nec-displays/c861q firmware · sharp-nec-displays/p754q firmware · sharp-nec-displays/v754q firmware · sharp-nec-displays/c751q firmware · sharp-nec-displays/v984q firmware · sharp-nec-displays/c981q firmware · sharp-nec-displays/p654q firmware · sharp-nec-displays/v654q firmware · +14 more
Source
psirt-info@cyber.jp.nec.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.