CVE-2019-18990 Information

Description

A partial authentication bypass vulnerability exists on Realtek RTL8812AR 1.21WW RTL8196D 1.0.0 RTL8192ER 2.10 and RTL8881AN 1.09 devices. The vulnerability allows sending an unencrypted data frame to a WPA2-protected WLAN router where the packet is routed through the network. If successful a response is sent back as an encrypted frame which would allow an attacker to discern information or potentially modify data.

CVSS Vector

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

Reference

https://www.synopsys.com/blogs/software-security/cyrc-advisory-sept2020/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.4