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CVE-2020-16230

LOW

2.3

CVSS Score

Published: September 18, 2020 at 06:04 PM UTC

Updated: June 17, 2026 at 02:57 AM UTC

5 products affected across 1 vendorEwon Cosy+ FirmwareEwon Flexy FirmwareNetworks Ewon Cosy

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Severity

LOW2.3

Exploit prediction

EPSS 0.3%

Description

All version of Ewon Flexy and Cosy prior to 14.1 use wildcards such as (*) under which domains can request resources. An attacker with local access and high privileges could inject scripts into the Cross-origin Resource Sharing (CORS) configuration that could abuse this vulnerability, allowing the attacker to retrieve limited confidential information through sniffing.

Affected

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

Ewon Cosy+ Firmware · Hms Networks

95%

v < 14.1

Affected range stops below 14.1, so it looks safe — our inference, not a vendor statement

Ewon Flexy Firmware · Hms Networks

95%

v < 14.1

Affected range stops below 14.1, so it looks safe — our inference, not a vendor statement

hms-networks-ewon-flexy (same device)

Networks Ewon Cosy · Hms Networks

75%

v < 14.1

Affected range stops below 14.1, so it looks safe — our inference, not a vendor statement

Ewon Cosy · Hms Networks

60%

v < 14.1

Affected range stops below 14.1, so it looks safe — our inference, not a vendor statement

Ewon Flexy · Hms Networks

60%

v < 14.1

Affected range stops below 14.1, so it looks safe — our inference, not a vendor statement

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.

References (1)

x_refsource_MISCThird Party AdvisoryUS Government Resource

Source: [email protected]

https://us-cert.cisa.gov/ics/advisories/icsa-20-254-03

CVSS

2.3LOW[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-Other

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