CVE-2020-25856

Katalog CVE

CVSS 8.1 · High EPSS 2,2%

Kerentanan Stack-based Buffer Overflow pada realtek rtl8195a firmware. Skor CVSS 3.1 8.1 (High) menurut NVD.

Deskripsi (NVD)

The function DecWPA2KeyData() 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 an rtl_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.

Rincian

Terbit di NVD

3 Februari 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.1 (High), sumber NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-121: Stack-based Buffer Overflow
CWE-787: Out-of-bounds Write

EPSS (30 hari)

2,2% peluang dieksploitasi; lebih tinggi dari 81,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.vdoo.com/blog/realtek-rtl8195a-vulnerabilities-discovered/ exploit · advisory pihak ketiga