---
id: CVE-2022-29641
title: >-
  TOTOLINK A3100R V4.1.2cu.5050_B20200504 and V4.1.2cu.5247_B20211129 were
  discovered to contain a stack overflow via the startTime and endTime
  parameters in the function setParentalRules
summary: >-
  TOTOLINK A3100R V4.1.2cu.5050_B20200504 and V4.1.2cu.5247_B20211129 were
  discovered to contain a stack overflow via the startTime and endTime
  parameters in the function setParentalRules. This vulnerability allows
  attackers to cause a Den…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-787
vendor: totolink
product: a3100r_firmware
affected:
  - a3100r_firmware = 4.1.2cu.5050_b20200504
  - a3100r_firmware = 4.1.2cu.5247_b20211129
published: '2022-05-18'
updated: '2026-07-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-29641'
references:
  - url: 'https://github.com/shijin0925/IOT/blob/master/TOTOLINK%20A3100R/4.md'
    label: cve@mitre.org
  - url: 'http://totolink.com'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/shijin0925/IOT/blob/master/TOTOLINK%20A3100R/4.md'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.01166
epssPercentile: 0.65942
ingestedAt: '2026-07-06T17:03:24.388Z'
---

## Overview

TOTOLINK A3100R V4.1.2cu.5050_B20200504 and V4.1.2cu.5247_B20211129 were discovered to contain a stack overflow via the startTime and endTime parameters in the function setParentalRules. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

## Affected

- `a3100r_firmware = 4.1.2cu.5050_b20200504`
- `a3100r_firmware = 4.1.2cu.5247_b20211129`

## Remediation

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