CVE•Published 2022-03-11•Modified 2026-07-09•1 article on news•5 live references•NVD data

CVE-2021-44620Totolink · A3100r_firmware

Vulnerability data via NVD (ingested)

CVSS v3.1

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS percentile

Exploit Prediction Scoring System · top 19% of all CVEs

Weaknesses (CWE)

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')

Description

A Command Injection vulnerability exits in TOTOLINK A3100R <=V4.1.2cu.5050_B20200504 in adm/ntm.asp via the hosTime parameters.

Timeline

Published 2022-03-11

Modified 2026-07-09

External references

NVD MITRE Exploit-DB GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2021-44620

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · OS

os:"A3100r Firmware"

Hosts Shodan identified as running A3100r Firmware.

More intel sources (5)

Shodan report

vuln:CVE-2021-44620

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2021-44620

Censys host search filtered to this CVE id.

grep.app

CVE-2021-44620

Public source-code mentions — fast PoC discovery.

GitHub code

CVE-2021-44620

GitHub code search for direct mentions.

Google dork

"CVE-2021-44620" exploit -site:nvd.nist.gov

Write-ups and news, NVD excluded.

Known PoCs on GitHub

No public proof-of-concept repositories found for CVE-2021-44620 on GitHub.