CVE-2021-33478

cisco ip phone 8800 firmware, cisco ip phone 8800 series with multiplatform firmware, cisco ip phone 8811 firmware +12 lainnya

TLP:CLEAR

csirt@kutim:~/threat-intel/cve/CVE-2021-33478

Katalog CVE

CVSS 6.8 · Medium EPSS 0,30%

Kerentanan Improper Restriction of Operations within the Bounds of a Memory Buffer pada cisco ip phone 8800 firmware, cisco ip phone 8800 series with multiplatform firmware +13 lainnya. Skor CVSS 3.1 6.8 (Medium) menurut NVD.

Deskripsi (NVD)

The TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code execution in the TrustZone Trusted Execution Environment (TEE) of an affected device. This, for example, affects certain Cisco IP Phone and Wireless IP Phone products before 2021-07-07. Exploitation is possible only when the attacker can disassemble the device in order to control the voltage/current for chip pins.

Rincian

Terbit di NVD
22 Juli 2021
Terakhir diubah
17 Juni 2026
Status NVD
Modified
CVSS 3.1
6.8 (Medium), sumber NVD
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
EPSS (30 hari)
0,30% peluang dieksploitasi; lebih tinggi dari 21,4% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
cisco ip phone 8800 firmware Semua versi sebelum 14.0\(1\)
cisco ip phone 8800 series with multiplatform firmware Semua versi sebelum 11.3\(4\)
cisco ip phone 8811 firmware Semua versi sebelum 14.0\(1\)
cisco ip phone 8811 with multiplatform firmware Semua versi sebelum 11.3\(4\)
cisco ip phone 8841 firmware Semua versi sebelum 14.0\(1\)
cisco ip phone 8841 with multiplatform firmware Semua versi sebelum 11.3\(4\)
cisco ip phone 8845 firmware Semua versi sebelum 14.0\(1\)
cisco ip phone 8845 with multiplatform firmware Semua versi sebelum 11.3\(4\)
cisco ip phone 8851 firmware Semua versi sebelum 14.0\(1\)
cisco ip phone 8851 with multiplatform firmware Semua versi sebelum 11.3\(4\)
cisco ip phone 8861 firmware Semua versi sebelum 14.0\(1\)
cisco ip phone 8861 with multiplatform firmware Semua versi sebelum 11.3\(4\)
cisco ip phone 8865 firmware Semua versi sebelum 14.0\(1\)
cisco ip phone 8865 with multiplatform firmware Semua versi sebelum 11.3\(4\)
cisco wireless ip phone 8821 firmware Semua versi sebelum 11.0\(6\)sr1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.