CVEvulnerability

CVE-2020-27484

9.9 CRITICAL Published 2020-11-16 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-11-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.9 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P
Weaknesses
CWE-190

Description

Garmin Forerunner 235 before 8.20 is affected by: Integer 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 fails to check for overflow when allocating the array for the NEWA instruction. This a constrained read/write primitive across the entire MAX32630 address space. A successful exploit would allow a ConnectIQ app store application to escape and perform activities outside the restricted application execution environment.

Affected configurations

• garmin forerunner 235 firmware (>= 7.90 < 8.20)

Related

Weakness · CWE (1)

  • CWE-190 Integer Overflow or Wraparound weakness

References