CVE-2021-20699

CVSS V2 High 10 CVSS V3 Critical 9.8
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.
Overview
  • CVE ID
  • CVE-2021-20699
  • Assigner
  • vultures@jpcert.or.jp
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-06-07T14:15:07
  • Last Modified Date
  • 2022-10-06T18:26:27
Weakness Enumerations
CWE URL
CWE-77 http://cwe.mitre.org/data/definitions/77.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:sharp-nec-displays:un462a_firmware:*:*:*:*:*:*:*:* 1 OR r1.300
cpe:2.3:h:sharp-nec-displays:un462a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:un462va_firmware:*:*:*:*:*:*:*:* 1 OR r1.300
cpe:2.3:h:sharp-nec-displays:un462va:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:un492s_firmware:*:*:*:*:*:*:*:* 1 OR r1.300
cpe:2.3:h:sharp-nec-displays:un492s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:un492vs_firmware:*:*:*:*:*:*:*:* 1 OR r1.300
cpe:2.3:h:sharp-nec-displays:un492vs:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:un552a_firmware:*:*:*:*:*:*:*:* 1 OR r1.300
cpe:2.3:h:sharp-nec-displays:un552a:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:un552s_firmware:*:*:*:*:*:*:*:* 1 OR r1.300
cpe:2.3:h:sharp-nec-displays:un552s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:un552vs_firmware:*:*:*:*:*:*:*:* 1 OR r1.300
cpe:2.3:h:sharp-nec-displays:un552vs:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:un552_firmware:*:*:*:*:*:*:*:* 1 OR r1.300
cpe:2.3:h:sharp-nec-displays:un552:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:un552v_firmware:*:*:*:*:*:*:*:* 1 OR r1.300
cpe:2.3:h:sharp-nec-displays:un552v:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:ux552s_firmware:*:*:*:*:*:*:*:* 1 OR r1.300
cpe:2.3:h:sharp-nec-displays:ux552s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:ux552_firmware:*:*:*:*:*:*:*:* 1 OR r1.300
cpe:2.3:h:sharp-nec-displays:ux552:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:v864q_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:v864q:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:c861q_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:c861q:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:p754q_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:p754q:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:v754q_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:v754q:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:c751q_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:c751q:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:v984q_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:v984q:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:c981q_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:c981q:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:p654q_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:p654q:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:v654q_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:v654q:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:c651q_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:c651q:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:v554q_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:v554q:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:p404_firmware:*:*:*:*:*:*:*:* 1 OR r3.201
cpe:2.3:h:sharp-nec-displays:p404:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:p484_firmware:*:*:*:*:*:*:*:* 1 OR r3.201
cpe:2.3:h:sharp-nec-displays:p484:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:p554_firmware:*:*:*:*:*:*:*:* 1 OR r3.201
cpe:2.3:h:sharp-nec-displays:p554:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:v404_firmware:*:*:*:*:*:*:*:* 1 OR r3.201
cpe:2.3:h:sharp-nec-displays:v404:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:v484_firmware:*:*:*:*:*:*:*:* 1 OR r3.201
cpe:2.3:h:sharp-nec-displays:v484:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:v554_firmware:*:*:*:*:*:*:*:* 1 OR r3.201
cpe:2.3:h:sharp-nec-displays:v554:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:v404-t_firmware:*:*:*:*:*:*:*:* 1 OR r3.201
cpe:2.3:h:sharp-nec-displays:v404-t:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:v484-t_firmware:*:*:*:*:*:*:*:* 1 OR r3.201
cpe:2.3:h:sharp-nec-displays:v484-t:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:v554-t_firmware:*:*:*:*:*:*:*:* 1 OR r3.201
cpe:2.3:h:sharp-nec-displays:v554-t:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:c501_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:c501:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:c551_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:c551:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:sharp-nec-displays:c431_firmware:*:*:*:*:*:*:*:* 1 OR r2.000
cpe:2.3:h:sharp-nec-displays:c431:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 10
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.sharp-nec-displays.com/global/support/info/A5-1_vulnerability.html Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-20699
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20699
History
Created Old Value New Value Data Type Notes
2022-05-10 06:51:52 Added to TrackCVE
2022-12-05 03:38:40 2021-06-07T14:15Z 2021-06-07T14:15:07 CVE Published Date updated
2022-12-05 03:38:40 2022-10-06T18:26:27 CVE Modified Date updated
2022-12-05 03:38:40 Analyzed Vulnerability Status updated