CVE-2020-27486

Katalog CVE

CVSS 9.9 · Critical EPSS 1,9%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada garmin forerunner 235 firmware. Skor CVSS 3.1 9.9 (Critical) menurut NVD.

Deskripsi (NVD)

Garmin Forerunner 235 before 8.20 is affected by: Buffer Overflow. The component is: ConnectIQ TVM. The attack vector is: To exploit the vulnerability, the attacker must upload a malicious ConnectIQ application to the ConnectIQ store. The ConnectIQ program interpreter trusts the string length provided in the data section of the PRG file. It allocates memory for the string immediately, and then copies the string into the TVM object by using a function similar to strcpy. This copy can exceed the length of the allocated string data and overwrite heap data. A successful exploit would allow a ConnectIQ app store application to escape and perform activities outside the restricted application execution environment.

Rincian

Terbit di NVD

16 November 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

EPSS (30 hari)

1,9% peluang dieksploitasi; lebih tinggi dari 79,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0006.md exploit · advisory pihak ketiga