CVE-2020-25855
Severity CVSS v4.0:
Pending analysis
Type:
CWE-787
Out-of-bounds Write
Publication date:
03/02/2021
Last modified:
08/02/2021
Description
The function AES_UnWRAP() in the Realtek RTL8195A Wi-Fi Module prior to versions released in April 2020 (up to and excluding 2.08) does not validate the size parameter for a memcpy() operation, resulting in a stack buffer overflow which can be exploited for remote code execution or denial of service. An attacker can impersonate an Access Point and attack a vulnerable Wi-Fi client, by injecting a crafted packet into the WPA2 handshake. The attacker needs to know the network's PSK in order to exploit this.
Impact
Base Score 3.x
8.10
Severity 3.x
HIGH
Base Score 2.0
6.80
Severity 2.0
MEDIUM
Vulnerable products and versions
CPE | From | Up to |
---|---|---|
cpe:2.3:o:realtek:rtl8195a_firmware:*:*:*:*:*:*:*:* | 2.08 (excluding) | |
cpe:2.3:h:realtek:rtl8195a:-:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page