CVE-2020-25853

Katalog CVE

CVSS 7.5 · High EPSS 1,2%

Kerentanan Buffer Over-read pada realtek rtl8195a firmware. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

The function CheckMic() 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 internal function, _rt_md5_hmac_veneer() or _rt_hmac_sha1_veneer(), resulting in a stack buffer over-read which can be exploited for 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 does not need to know the network's PSK.

Rincian

Terbit di NVD

3 Februari 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-126: Buffer Over-read
CWE-125: Out-of-bounds Read

EPSS (30 hari)

1,2% peluang dieksploitasi; lebih tinggi dari 68,5% 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