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[email protected]CVE-2021-37273

HistorySep 28, 2021 - 6:15 p.m.

CVE-2021-37273

2021-09-2818:15:08

[email protected]

web.nvd.nist.gov

cve-2021-37273

denial of service

china telecom corporation

epon tianyi gateway

zxhn f450

epon onu

nvd

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

42.6%

JSON

A Denial of Service issue exists in China Telecom Corporation EPON Tianyi Gateway ZXHN F450(EPON ONU) 3.0. Tianyi Gateway is a hardware terminal of “Optical Modem Smart Router.” Attackers can use this vulnerability to restart the device multiple times.

Affected configurations

NVD

Node

chinatelecomepon_tianyi_gateway_zxhn_f450Match-

AND

chinatelecomepon_tianyi_gateway_zxhn_f450_firmwareMatch3.0

CPENameOperatorVersion
chinatelecom:epon_tianyi_gateway_zxhn_f450_firmwarechinatelecom epon tianyi gateway zxhn f450 firmwareeq3.0

CPE	Name	Operator	Version
chinatelecom:epon_tianyi_gateway_zxhn_f450_firmware	chinatelecom epon tianyi gateway zxhn f450 firmware	eq	3.0

References

www.cnvd.org.cn/flaw/show/2958526

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

42.6%

JSON

Related for CVE-2021-37273

nvd1 cvelist1 prion1