CVE-2021-20156

Katalog CVE

CVSS 6.5 · Medium EPSS 0,41%

Kerentanan Improper Verification of Cryptographic Signature pada trendnet tew-827dru firmware. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

Trendnet AC2600 TEW-827DRU version 2.08B01 contains an improper access control configuration that could allow for a malicious firmware update. It is possible to manually install firmware that may be malicious in nature as there does not appear to be any signature validation done to determine if it is from a known and trusted source. This includes firmware updates that are done via the automated "check for updates" in the admin interface. If an attacker is able to masquerade as the update server, the device will not verify that the firmware updates downloaded are legitimate.

Rincian

Terbit di NVD

30 Desember 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

0,41% peluang dieksploitasi; lebih tinggi dari 32,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.tenable.com/security/research/tra-2021-54 advisory pihak ketiga