CVE-2021-37273
HIGH
7.5
CVSS Score
Published: September 28, 2021 at 06:00 PM UTC
Updated: June 17, 2026 at 04:00 AM UTC
2 products affected across 1 vendorEpon Tianyi Gateway Zxhn F450 FirmwareEpon Tianyi Gateway Zxhn F450
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Severity
HIGH7.5
Exploit prediction
EPSS 1.0%
Description
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
chinatelecom-epon-tianyi-gateway-zxhn-f450 (same device)
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.cnvd.org.cn/flaw/show/2958526CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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