CVE•Published 2022-08-23•Modified 2026-07-09•1 article on news•5 live references•NVD data
CVE-2021-42232Tp-link · Archer_a7_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
86
Exploit Prediction Scoring System · top 14% of all CVEs
Weaknesses (CWE)
Description
TP-Link Archer A7 Archer A7(US)_V5_210519 is affected by a command injection vulnerability in /usr/bin/tddp. The vulnerability is caused by the program taking part of the received data packet as part of the command. This will cause an attacker to execute arbitrary commands on the router.
Timeline
Published 2022-08-23
Modified 2026-07-09
External references
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-2021-42232Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Archer A7 Firmware"Hosts Shodan identified as running Archer A7 Firmware.
More intel sources (5)
Shodan report
vuln:CVE-2021-42232Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-42232Censys host search filtered to this CVE id.
grep.app
CVE-2021-42232Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-42232GitHub code search for direct mentions.
Google dork
"CVE-2021-42232" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2021-42232 on GitHub.