---
id: CVE-2021-46416
title: >-
  Insecure direct object reference in SUNNY TRIPOWER 5.0 Firmware version
  3.10.16.R leads to unauthorized user groups accessing due to insecure cookie
  handling.
summary: >-
  Insecure direct object reference in SUNNY TRIPOWER 5.0 Firmware version
  3.10.16.R leads to unauthorized user groups accessing due to insecure cookie
  handling.
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-639
  - CWE-639
vendor: sma
product: sunny_tripower_firmware
affected:
  - sunny_tripower_firmware = 3.10.16.r
published: '2022-04-07'
updated: '2026-07-13'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-46416'
references:
  - url: >-
      http://packetstormsecurity.com/files/166670/SAM-SUNNY-TRIPOWER-5.0-Insecure-Direct-Object-Reference.html
    label: cve@mitre.org
  - url: >-
      https://drive.google.com/drive/folders/1BPULhDC_g__seH_VnQlVtkrKdOLkXdzV?usp=sharing
    label: cve@mitre.org
  - url: >-
      https://www.sma.de/en/products/solarinverters/sunny-tripower-30-40-50-60.html
    label: cve@mitre.org
  - url: >-
      http://packetstormsecurity.com/files/166670/SAM-SUNNY-TRIPOWER-5.0-Insecure-Direct-Object-Reference.html
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://drive.google.com/drive/folders/1BPULhDC_g__seH_VnQlVtkrKdOLkXdzV?usp=sharing
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://www.sma.de/en/products/solarinverters/sunny-tripower-30-40-50-60.html
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      http://packetstormsecurity.com/files/166670/SAM-SUNNY-TRIPOWER-5.0-Insecure-Direct-Object-Reference.html
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - exploit-available
epss: 0.04262
epssPercentile: 0.9069
exploitAvailable: true
ingestedAt: '2026-07-13T17:27:58.698Z'
exploits:
  exploitdb: true
  checkedAt: '2026-09-25T08:20:40.217Z'
---

## Overview

Insecure direct object reference in SUNNY TRIPOWER 5.0 Firmware version 3.10.16.R leads to unauthorized user groups accessing due to insecure cookie handling.

## Affected

- `sunny_tripower_firmware = 3.10.16.r`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.